Four people have been killed and 30 wounded in a wave of grenade attacks overnight in Burundi, police say, a week before parliamentary elections.
A single attack on a bar in Ngozi, the hometown of President Pierre Nkurunziza, accounted for the majority of the victims.
Police blamed the attacks on opposition supporters and said two suspects had been arrested.
Violent protests began in April against the president’s third-term bid.
In two grenade attacks overnight, one police officer was injured in the capital Bujumbura, and two people injured after an explosion near a bank in the northern town of Kirundo, police said.
Rights groups say at least 70 people have been killed and 500 wounded since the protests began in April.
On Friday night 11 police officers were wounded in simultaneous grenade attacks in the capital Bujumbura.