A bomb thrown into a hotel in Ethiopia's restive northern Amhara region has killed a government employee and injured 19 other people, a spokesman for the regional authorities said Wednesday.
The bomb was thrown into Entasal hotel in the city of Gondar late Tuesday, Nigusu Tilahun told dpa.
Three of the injured were in serious condition.
Tilahun said police were trying to track down the bombers, whose identity was not known, but who he said were likely to have been "anti-peace elements."
Another bomb exploded in the Amhara capital Bahir Dar in January 4, but no injuries were reported.
Ethiopia has seen anti-government protests since November 2015 mainly in the Oromia region, which includes the capital, Addis Ababa, and also in the Amhara region.
The Oromo ethnic group feels excluded from political and economic power, while the Amhara protests have focused on federal boundaries drawn two decades ago that are seen as cutting off many ethnic Amharas from the region.
The Amhara protests later turned to calls for wider political freedoms and even for a change in government.
Ethiopia has arrested tens of thousands of people under a state of emergency that was declared in October. The government later announced the release of nearly 10,000 of them.