Two people have been killed and more than a dozen injured in a series of grenade blasts in the Burundian capital, AP cited witnesses as saying. Two of the explosions happened in an open market on Monday in the Ngagara area of Bujumbura, killing at least two. Two other grenades exploded in the center of Bujumbura, injuring 11 people. Another explosion happened in the Buyenzi area, wounding at least three people.