Rohingya Muslim militants in Myanmar killed dozens of Hindu civilians during attacks last August, according to an investigation by Amnesty International.
The group called Arsa killed up to 99 Hindu civilians in one, or possibly two massacres, said the rights group. Arsa had denied involvement.
The killings came in the first days of an uprising against Burmese forces, who are also accused of atrocities.
Since August nearly 700,000 Rohingyas and others have fled the violence.
The conflict has also displaced members of the majority Buddhist population in Myanmar (also called Burma) as well as members of the Hindu minority.
Amnesty says interviews it conducted with refugees in Bangladesh and in Rakhine state confirmed that mass killings carried out by the Arakan Rohingya Salvation Army (Arsa) took place in a cluster of villages in northern Maungdaw Township at the time of its attacks on police posts in late August.
The findings also show Arsa was responsible for violence against civilians, on a smaller scale, in other areas.
The report details how Arsa members on 26 August…