At least 31 people were killed on Sunday and 16 others injured in a bus accident near the city of Mbanza-Ngungu in south-western Democratic Republic of Congo, UN-backed Radio Okapi reports.

The administrator of Mbanza-Ngungu, Didier Nsimba, said the bus’ brakes may have failed, causing the accident.

He said some of the victims’ bodies have been taken to the Sonankulu General Hospital.