Key Points
ใปOn October 8, 2026, a fire started from a vehicle of Mobicom, a Mongolian subsidiary of Japan’s KDDI, inside the Nomrog Strictly Protected Area in eastern Mongolia, and about 79.8 percent of the reserve burned, according to preliminary figures attributed to Mongolia’s Ministry of Environment and Climate Change in local news reports.
ใปThe claim that Japanese executives started the fire while fishing or hunting appeared in early Mongolian reports that included anonymous information and social media talk, and later Chinese-language and Japanese-language posts treated it as fact.
ใปThe reports we checked contain no photos of fishing gear, named eyewitnesses or official findings on fishing, and KDDI says the visit was for business, so the cause and responsibility are still under investigation by Mongolian authorities.
A Vehicle Fire Inside the Reserve Burns About 80 Percent of It
A steppe fire broke out around noon on October 8 in the Nomrog Strictly Protected Area in Dornod Province, eastern Mongolia, near the Chinese border. The fire spread beyond the reserve and was fully extinguished on the morning of October 16, according to Mongolia’s National Emergency Management Agency.
According to preliminary figures from Mongolia’s Ministry of Environment and Climate Change, as reported by the Mongolian news site ikon.mn around October 20, about 529,000 hectares burned in total, including areas outside the reserve. Of that, about 469,000 hectares were inside the reserve, which is 79.8 percent of the reserve’s area.
In a statement on October 13, the General Authority for Border Protection said it had permitted 13 people and 5 vehicles, including Mobicom’s management, to enter the border zone. The agency described the blaze as a vehicle fire caused by the carelessness of those who entered, and said law enforcement is investigating the cause and the damage.
On October 23, KDDI apologized and said the group was on a visit at the request of the border port authority, attending an opening ceremony and checking communication quality. It said the only Japanese national in the group was Mobicom CEO Ochi.
Related Articles
Where the Fishing Claim Came From, and Who Said What
A strictly protected area in Mongolia is a nature reserve with the country’s tightest limits on entry and activity, and Nomrog is one of them. Mobicom is a Mongolian mobile carrier owned by Japan’s KDDI. The fire involved a Mobicom vehicle, and the question is how a visit by company staff turned into a large-scale fire.
Early Mongolian reports of the fishing claim
According to the Mongolian news site Eguur (in Mongolian), an article published around 8 a.m. on October 12, four days after the fire, said Mobicom executives had gone to catch taimen, a large freshwater fish related to salmon, and had burned the reserve.
The headline and lead stated the fishing as fact. The same article described the party’s members and route only as coming “according to sources,” and said the hunting talk had been circulating strongly on social media over the weekend. The photo of a vehicle was labeled as a reference image of the type of car said to have burned, and the article showed no fishing gear or catch.
The same day, the Mongolian outlet Record (in Mongolian) wrote that “local residents and other sources” were saying on social media that the executives had been hunting and fishing for fun. The local television reporter who first covered the fire told ikon.mn (in Mongolian) only that he suspected this from the circumstances.
From Chinese to Japanese
One post that helped spread the claim in Japanese was by Song Wenzhou, a businessman and commentator. On the morning of October 17, Japan time, he quoted a Chinese-language post that, citing “Mongolian media,” had asked in question form whether a Japanese executive’s fishing caused the fire. His own post presented the claim as fact: that the executive entered the steppe to fish for an endangered freshwater fish and started the fire.
That post had been viewed about 200,000 times as of October 25, according to X’s public counts. In the Chinese-language sphere, a commentary on the portal Sina said on October 17 that the Japanese fishing in the reserve “can be confirmed,” and Xinhua, from October 20 on, reported the fishing and hunting suspicions while attributing them to “local media.” In English-language online discussions, some posts also called it an “illegal fishing trip” without naming a source.
What KDDI and the authorities have said
According to KDDI’s apology of October 23, Mobicom had two vehicles and seven employees including drivers. KDDI said they were attending an opening ceremony for a network Mobicom had built, at the request of the border port authority, and checking 4G quality, with three official vehicles driving ahead of and behind the convoy.
The border agency’s “13 people and 5 vehicles” is the total number permitted, which also covers border port authority officials and local residents.
KDDI said tall dry grass kept wrapping around the vehicles, so the group stopped every 20 to 30 minutes to clear it. During one stop, smoke came from beneath a vehicle and the fire could not be put out. KDDI has not rebutted the fishing or hunting claims by those words, and says only that there is “speculation and information that differs from the facts.”
Entry permission involved two separate procedures. The border agency issued permission to enter the border zone. Entering a protected area requires a separate advance notice to the reserve office and an entry fee. A senior official of the Ministry of Environment, speaking to DNN (in Mongolian), said there was information that this group neither gave notice nor paid.
In its statement of October 13 (in Mongolian), the border agency listed the facts that the Member of Parliament named in rumors and a border unit commander were not at the scene during the fire. On that basis it called false the stories that they were “with these people, drunk, took bribes, fought and hunted.” The statement does not mention fishing.
How the Rumor Spread, and What the Company and Authorities Must Explain
How did the fishing claim lose its sourcing as it was quoted?
What stands out is not the content of the claim but how its sourcing changed along the way. Eguur’s October 12 article put a flat headline over a body that cited “sources” and “social media talk.” The headline is what readers see, and the sourcing sits deep in the text. When only the headline is carried in reposts and summaries, only the conclusion remains.
Song’s post follows the same pattern. The Chinese-language post he quoted was written as a question attributed to Mongolian media, but in the Japanese introduction the question mark was dropped and a name and a purpose were set side by side in one short sentence. In English-language discussions, too, posts calling it an “illegal fishing trip” appear with no source.
The same thing happens in the opposite direction. In Japan, a summary circulated on X saying that the authorities had also denied fishing, but the border agency’s statement called false the stories about the Member of Parliament and the unit commander being with the group. Fishing is not in the statement.
Local reporters and officials have also been critical of more than a suspected pleasure trip. They have raised the scale of the damage, which reached nearly 80 percent of the reserve, and the circumstances of an entry that reportedly happened without notice to the reserve. An unverified accusation about leisure and criticism of a fire that caused major damage are two different matters with different weight.
Related article
Vinรญcius Jรบnior โBody Doubleโ Theory: How a Changed Face Became a Conspiracy
What should the company explain about safety management?
KDDI’s own account raises questions about safety management. If dry grass wrapped around the vehicles so often that the group had to stop every 20 to 30 minutes to clear it, then the risk of the vehicles’ heat igniting the grass was visible well before the fire started.
Who decided to keep driving under those conditions? Were there options such as choosing a route with less grass, or postponing travel in the dry season? Did the vehicles carry fire extinguishers or other firefighting equipment, and why could the first flames not be stopped? Had the company, for its part, checked that notice had been given to the reserve office?
Even if the visit was requested by the border port authority and official vehicles drove ahead of and behind the convoy, the safety of the company’s own vehicles and employees remains the company’s responsibility. KDDI has pledged full cooperation with the investigation and recovery of the natural environment, and its answers on these points will determine how much its apology amounts to in practice.
What should the permitting authorities explain?
The authorities also face questions. KDDI says the border guards permitted entry into the border zone and that the border port authority had requested the visit and managed the convoy. Meanwhile, the Ministry of Environment official said there was information that no notice was given to the reserve, and the Dornod governor acknowledged that it was “unclear” which permit should apply.
If several agencies were involved in one trip and it had not been settled who would check the protected-area procedure, that is a gap a company alone cannot close. The governor has announced a ban on entry during the dry season, and the environment minister has discussed building fences along the reserve’s boundary. The minister has said the people involved in the ignition have already been identified, and that the damage will be assessed in about 30 days.
As for the Member of Parliament named in rumors, the border agency says he was not at the scene during the fire. Instead of placing responsibility on either the Japanese company or the local administration alone, the investigation’s results can show what the side that started the fire and the side that issued permits each checked, and what each failed to check.
How serious is the damage, and does it echo 2023?
The “about 80 percent” figure is the share of the reserve’s area that burned. How many animals and plants were lost will be assessed later by specialist agencies.
A fire in April 2023 had already burned about 76 percent of the Nomrog reserve. According to the damage assessment reported by ikon.mn at the time (in Mongolian), losses came to about 3.6 billion tugrik, mostly lost pasture, along with harm to species such as the Mongolian gazelle and the moose. Dry steppe from autumn to spring burns easily, and once a fire starts it can spread over a wide area.
Japanese Reactions to the Mongolia Steppe Fire
This section covers five posts on X, all from individual users, selected from posts about the fire. They are reactions on X, not a measure of Japanese public opinion. Any numbers in the posts are the posters’ own claims. The quotes below are our translations of the post text, checked against each post’s embed on October 25, 2026.
Song Wenzhou’s post was one of the early Japanese-language posts to state the fishing claim flatly.
่ฟทๆๆฅๆฌไบบใใขใณใดใซ่ๅใซๅฑฑ็ซไบใ่ตทใใ
— ๅฎใๆๆดฒ (@sohbunshu) October 16, 2026
ไธญๅฝใ๏ผ๏ผ๏ผ๏ผไบบใฎๆถ้ฒๅฃซใจๆถ็ซใใชใๆดพ้ฃใใใใฃใจๆถ็ซ
่ถๆบๅบทๅๆฐใ็ตถๆป ๅฑๆง็จฎใฎๆทกๆฐด้ญใ้ฃใใใใซใใขใณใดใซ่ๅใซๆฅๆฌ่ปใงไนใ้ใใๆ ้ใ่ตทใใใฆๆฏใ่ใซ็น็ซ:โฆ https://t.co/uCYlgWk8JA
Troublesome Japanese cause a wildfire on the Mongolian steppe. China sent 3,400 firefighters and firefighting helicopters to finally put it out. Mr. Ochi Yasuhiro drove a Japanese car on and off the steppe to fish for an endangered freshwater fish, it broke down and ignited dry grass: … (quoting a Chinese-language post by @zmx8067) (translated)
The post quotes a Chinese-language post that had framed this as a question, and presents it as settled. The firefighter figure and the fishing purpose are the poster’s claims, and we could not confirm either.
Ayako Kimura, who describes herself as a Mongolia researcher, posted on October 22 about how the news was received in Mongolia.
ใขใณใดใซๅฝใงใขใณใดใซ่ชใงใใฎใใฅใผในใๅบใใจใ็งใฏๆฅๆฌไบบใฏๆชใใชใใจๆธใใพใใใไธ้จใฎใขใณใดใซไบบใฏๆฏๆใใฆใใใพใใใใไธ้จใฎใขใณใดใซไบบใใไธญๅฝใญใทใขใ้ปใฃใฆใชใใใจ่ ใใใพใใใ็พๅ ดใฏๆฅๆฌไบบใ่กใใใใจ่จใฃใฆ็ฐกๅใซๅ ฅใใใจใชใขใงใฏใใใพใใใ่ช็ถไฟ่ญทๅบใซๅ ฅใใซใใใๆญฃๅผใซ่จฑๅฏใฏโฆ https://t.co/go68Dp2qOP
— Ayako Kimura ๆจๆ็ๅญ (@MongolAyako) October 22, 2026
When this news came out in Mongolian in Mongolia, I wrote that the Japanese were not at fault. Some Mongolians supported me, but some Mongolians threatened me, saying China and Russia would not stay silent. The site is not an area Japanese people can enter simply by saying they want to go. To enter a nature reserve, formal permission … (the rest is truncated in the embed) (translated)
This is one individual’s account of Mongolian reactions and of the permit question. The post is cut off in its embed, and we could not confirm the claims about threats or about the permits.
Researcher Satoru Miyamoto reacted to KDDI’s statement on October 23.
ใใใใ13ไบบไธญใๆฅๆฌไบบใฏ่ถๆบใใ1ไบบใ ใใใใใขใทใใใใใฏใขใณใดใซ็ฑใ ใฃใใใ ใชใๅฝๅขๆธฏๆนพๅฑใฎ่ฆ่ซใง่จชๅใใใใใใ้่ฆๆฟๅบๆฉ้ขใ ใใCEOใ่ชใ่จชๅใใใใใ ใๅฝๅขๆธฏๆนพๅฑใๅฝๅขๅฐๅธฏใธใฎ้ไฟก่จญๅ่จญ็ฝฎใใขใใณใ ใซ่ฆ่ซใใฆใใใฎใฏ็ฅใฃใฆใใใฎใงใใใฎไธ็ฐใใhttps://t.co/0T3j3D53oj https://t.co/MF54sYjfCx
— ๅฎฎๆฌๆ(Satoru Miyamoto) (@satoru_miyamoto) October 23, 2026
I see, so of the 13 people, Mr. Ochi was the only Japanese. Mr. “Ashina” was a Mongolian national. They visited at the request of the border port authority. The CEO himself visited because it is an important government agency. I knew the border port authority had asked Mobicom to install communication equipment in the border zone, so this must be part of that. (translated)
The post reads KDDI’s explanation as plausible and adds the poster’s own understanding of why the CEO was there. “Ashina” is a name given in the post and we could not match it to KDDI’s statement.
An individual user posted a list of rumors and rebuttals on October 23.
ใๆฅๆฌไบบใ่ตทใใใ็ซ็ฝใโ่ปใใใฎๅบ็ซ
— ๆฒ้ทไบๆญฉๅฐๅ (@sao_nifu) October 23, 2026
ใๆฅๆฌไบบใฐใซใผใใใผใโ13ไบบไธญๆฅๆฌไบบใฏ1ใ2ๅ
ใ็ก่จฑๅฏใงไพตๅ ฅใโ่จฑๅฏใใ
ใๅฏ็ใใผใโ ๅ ฌๅผใซๅฆๅฎ
ใ้ฃฒ้ ใใผใโๅ ฌๅผใซๅฆๅฎ
ใ่ณ่ณใใผใโๅ ฌๅผใซๅฆๅฎ
ใ้ฃๅ ทใ็ขบ่ชใใใโใฝใผในใชใ
ใๆฅๆฌไบบใฏ้ใๅธฐใฃใใโใฝใผในใชใ
ใ่ฌ็ฝชใใชใใโ่ฌ็ฝชใใฆใ
“A fire started by Japanese” โ the fire came from a vehicle. “A group of Japanese” โ of the 13 people, 1 or 2 were Japanese. “Entered without permission” โ they had permission. “Poaching” โ officially denied. “Drinking” โ officially denied. “Bribery” โ officially denied. “Fishing gear was found” โ no source. “The Japanese ran back home” โ no source. “They won’t apologize” โ they did apologize. (translated)
This is a popular rebuttal-style list, seen about 3.36 million times by X’s count. Parts of it go beyond what the border agency’s statement covered. The statement addressed the Member of Parliament and the unit commander, not fishing, and the border zone permit it describes is separate from the protected-area notice that the Ministry of Environment official said was missing. So “they had permission” and “officially denied” are broader than the sources checked here.
Asashoryu, a former sumo grand champion from Mongolia, posted on October 21, before KDDI’s statement.
ไธๆน็ใชๆฅๆฌไบบใๆชใใใใชใใฆใ็พๅฐใง้ฃใใฆ่กใฃใใขใณใดใซๅฝไผ่ญฐๅกใใกใฏ่จใใชใใฎ?
— Asashoryu็ฌฌ68ไปฃๆจช็ถฑๆ้้พ๐ฏ๐ต๐ฒ๐ณ (@Asashoryu) October 21, 2026
Rather than just blaming the Japanese one-sidedly, aren’t people going to say anything about the Mongolian members of parliament who took them there? (translated)
Asashoryu’s post is one view on how responsibility is shared. It is not a rebuttal of the fishing claim, and it is not a reply to Song’s post. As noted above, the border agency says the Member of Parliament named in rumors was not at the scene during the fire.
Taken together, these five posts show early claims stated flatly, later rebuttals that also stretch past the sources, and a few personal readings of who is responsible. We did not find widely shared personal posts that discuss the company’s safety management or the scale of damage directly. We do not fill that gap with invented examples, and these posts should not be read as Japan’s opinion as a whole.
Where the Rumor and the Investigation Stand
Two questions to follow separately
The anonymous information and social media talk in early Mongolian reports came to be treated as fact as it was quoted across languages. Meanwhile the cause and damage of a fire that burned nearly 80 percent of a reserve, and the way permits were issued, will take shape through Mongolian authorities’ investigation and measures to prevent a repeat.
Following the truth of the fishing claim, and the explanations owed by the company that started the fire and the authorities that issued permits, as separate threads makes it easier to see what each new report actually answers. Which of the two questions will the findings of the investigation settle first?
Frequently Asked Questions
Did Japanese executives start the Mongolia steppe fire while fishing?
This is unverified. According to the reports we checked, early Mongolian reports of the fishing and hunting claim included anonymous information and social media talk, with no photos, gear, named eyewitnesses or official findings on fishing. KDDI’s October 23 statement says the visit was for business.
What do Mongolian authorities say caused the fire?
According to the General Authority for Border Protection’s statement of October 13, the fire was a vehicle fire caused by the carelessness of those who entered, and law enforcement is investigating the cause and damage. The statement calls false the stories about drinking, bribery, fighting and hunting with the Member of Parliament and unit commander, and does not mention fishing.
How much of the Nomrog reserve burned?
According to preliminary figures from Mongolia’s Ministry of Environment and Climate Change, as reported by ikon.mn around October 20, about 469,000 hectares inside the reserve burned, or 79.8 percent of its area. Including areas outside the reserve, the total was about 529,000 hectares.
How did Japanese social media react to the Mongolia steppe fire?
Among the five individual posts on X that we selected, one stated the fishing claim flatly, others rebutted it or read KDDI’s account as plausible, and one raised how responsibility is shared with local officials. This is a small selection of posts, not a measure of Japanese public opinion.
Sekahan on YouTube
We publish video summaries of articles like this one, along with short clips built around Japanese reactions.
Reference Links
- Apology regarding the grassland fire of October 8, 2026 in the Nomrog Strictly Protected Area, Mongolia | KDDI Newsroom (in Japanese)
- General Authority for Border Protection issues a statement (in Mongolian) | Zogii
- Director Ulanchimeg: “People who entered the Nomrog reserve did not pay the entry fee or notify the reserve office” (in Mongolian) | DNN
- Executives of Mobicom who traveled to Dornod with MP Otgonbayar went to catch taimen and burned the Nomrog reserve (in Mongolian) | Eguur
- Mobicom admits the fire in the reserve but is “I was working” a lie? (in Mongolian) | Record
- Dornod fire covered 528,765.5 hectares, damage assessment under way (in Mongolian) | ikon.mn
- Grassland fire in Khalkhgol soum, Dornod Province, fully extinguished (in Mongolian) | Mongolia National Emergency Management Agency
- For comparison: damage assessment when 76 percent of the Nomrog reserve burned in 2023 was 3.6 billion tugrik (in Mongolian) | ikon.mn
