A police official in Burundi says an army major has been killed by gunmen in the capital.

Moise Nkurunziza, the deputy spokesman for Burundi's police, said Wednesday that Maj. Didier Muhimpundu was shot several times in a bar in Bujumbura on Tuesday night.

Muhimpundu's killing follows the assassination of another officer, Lt. Col. Darius Ikurakure, who was shot dead at the army headquarters in Burundi on Tuesday.

Army chief Prime Niyongabo urged unity within the armed forces in a statement after the killing of Ikurakure.

Hundreds of people have been killed in unrest following President Pierre Nkurunziza's decision last year to seek a third term in office, which he won.