Men pray in front of a house of Zedi Feruzi,the head of opposition party UPD, during his funeral in Bujumbura...
Men pray in front of a house of Zedi Feruzi, the head of opposition party UPD, during his funeral in Bujumbura, Burundi, May 24, 2015. U.N. Secretary-General Ban Ki-moon urged Burundi's government and its opponents not to let violence derail United Nations-sponsored talks, after the killing of the opposition leader prompted some opponents to say they would walk out.REUTERS/Goran Tomasevic