Dozen injured in Burundi grenade blast as UN chief visits

A dozen people were injured in at least 10 grenade blasts overnight in Bujumbura, police said Tuesday, as UN Secretary General Ban Ki-moon visited Burundi. "Last night, ten grenades exploded in several districts of Bujumbura, leaving a dozen people wounded," a senior police officer told AFP on condition of anonymity. Ban arrived in Bujumbura on Monday afternoon, hoping to bring fresh impetus to stalled efforts to resolve the 10-month-old crisis that has left more than 400 dead, caused over 240,0