CAIRO (AP) — At least 31 people were killed in tribal clashes in a Sudanese southern province, authorities said, the latest bloodshed in a country in turmoil since an October military coup.

The fighting between the Hausa and Birta ethnic groups in the Blue Nile province grew out of the killing of a farmer earlier this week, according to a statement from the local government late Friday.

The clashes also left at least 39 people injured and damaged some 16 shops shops in the town of Roseires, it said.

The local government deployed the military and paramilitary Rapid Support Forces — or RSF — to bring stability to the region.

Authorities also imposed a nightly curfew and banned gatherings in the area where the clashes took place.

The violence came amid chaos in Sudan since the military’s took over in October, removing a transitional government that ruled the country since a popular uprising forced the overthrow of longtime autocrat Omar al-Bashir in April 2019.

The coup upended the country’s transition to democracy and raised questions about military leaders’ ability to bring security to Sudan’s far-reaching areas. In April, tribal clashes killed over 200 people in war-wrecked Darfur.