There were mass protests in at least seven towns in Ethiopia’s Amhara region, including the capital Bahir Dar, calling for an end to killings targeting the Amhara people.
The demonstrations come after two towns were destroyed and thousands of people displaced in a series of ethnic attacks.
The attacks occurred in the eastern parts of the Amhara region where a majority of Amhara people reside alongside a minority Oromo people.
The regional government accused the rebel group, OLF Shane, but the group dismissed the accusations.
At least four districts were targeted and the chaos lasted for five days starting Wednesday. The attacks stopped on Monday after the military set up a command post in the area.
Survivors from two areas who spoke to BBC Amharic say at least 20 people died but officials said many people died, without giving an exact number.