Bujumbura - Grenades thrown into a market in the capital Bujumbura have killed two people, Burundi's state broadcaster says.
A reporter saw one person dead and at least 10 wounded following the explosions. Christine Kaneza, a fruit seller at the market who was wounded, said she heard two explosions.
Burundi has been experiencing weeks of unrest since the ruling party's announcement that President Pierre Nkurunziza would seek a third term in office.
Earlier this month, Nkurunziza's security forces crushed a military coup that tried to topple him. Three army generals accused of trying to topple Nkurunziza were arrested when they were found hiding in a house, while another senior security official was caught at the border while trying to flee to Tanzania.
First term
At least 20 people have died and 431 people have been wounded in street protests against the president's candidacy in the 26 June election, which opponents say is illegal.
Protesters say Nkurunziza's bid for a third term is illegal because the constitution only allows for two five-year terms. Nkurunziza maintains he can run for a third term because parliament - not the people - elected him for his first term.
At least 60 people died in grenade attacks after a 2010 election which Nkurunziza won after the opposition boycotted.