The military's ousting of Aung San Suu Kyi's government in 2021 sparked a huge backlash and it is now battling opponents across swaths of the country.
Investigators had now documented 22 instances of mass killings of 10 or more people, according to rights chief Volker Turk. Some troops had displayed"beheaded or otherwise defiled corpses" in order to terrorise local residents, the OHCHR said, echoing reporting by local media and a conflict monitoring group.
More than 24,000 people have been arrested during the military's sweeping crackdown on dissent, according to a local monitoring group.