A rebel group in the Central African Republic killed at least 32 civilians and captured fighters after clashes in December 2016 with another rebel group, Human Rights Watch (HRW) says.
The rights group is concerned that the killings took place despite the presence of Minusca, the UN peacekeeping mission in the Central African Republic (CAR).
According to HRW, the killings reportedly took place on 12 December in Bakala, a town in the southern-central part of the country.
Rebels from the Union for Peace in the Central African Republic (UPC) killed 25 people after calling them to a school for an alleged meeting, HRW said.
Earlier that day, they killed seven men who were returning from a nearby gold mine, it added.
CAR has been struggling to recover from chaos after going through nearly three years of civil war which broke following a coup in 2013.