The body of a man killed overnight lies on a street as polls open for the presidential elections in Bujumbura, Burundi, Tuesday, July 21, 2015. (AP/Jerome Delay)
The body of a man killed overnight lies on a street as polls open for the presidential elections in Bujumbura, Burundi, Tuesday, July 21, 2015. (AP/Jerome Delay)

Burundi must investigate attacks on journalists