A partial human body, missing its upper half, was discovered on May 19, 2026, in the mountains near Nippara in Okutama town, west Tokyo. The remains were found about 100 meters off a hiking trail on a steep slope, according to the Tokyo Metropolitan Police Department and local sources [1, 2, 3, 4, 5].
The partial remains were first spotted five days earlier, on May 14, by an off-duty police officer hiking in the area. Police and members of a local hunting association conducted a search following the initial sighting and located the body on May 19 [1, 2].
Authorities found animal tracks and droppings near the remains believed to be from a large wild animal. Officials are probing whether the victim was fatally mauled by a bear or other large animal, though accidental death from a fall cannot be ruled out yet. The victim’s gender and age remain unknown due to heavy mutilation of the body [1, 2, 3, 6, 4, 5].
A backpack and trekking poles were discovered some distance away from the body, raising the possibility the victim was hiking alone or separated from their belongings during the incident [1, 2]. A recent bear attack on May 17 injured a Russian hiker in his 30s nearby, causing serious facial and arm wounds, increasing concerns over wildlife dangers in the area [6].
Tokyo Metropolitan Police urged hikers to remain vigilant when traveling in Okutama’s mountainous terrain. “We urge hikers visiting the mountains of Okutama to be cautious due to potential bear encounters,” officials said [5].
Investigators are currently conducting forensic examinations and cross-referencing missing person reports to identify the victim and confirm the cause of death [5]. The police plan to continue searching the region for any signs related to the incident.
