Gunmen kill ally of Burundi's President Nkurunziza

Burundi's President Pierre Nkurunziza speaks during a news conference in Bujumbura, Burundi, May 17, 2015. REUTERS/Goran Tomasevic

NAIROBI (Reuters) - Gunmen shot dead a general who was a close ally of Burundi's President Pierre Nkurunziza in the capital on Sunday, the presidency and witnesses said, heightening tensions after a disputed presidential poll. General Adolphe Nshimirimana, former head of Burundi's intelligence services who was in charge of personal security for Nkurunziza, was killed in a car in the Kamenge district of Bujumbura, the sources added. Three of his bodyguards also died, they added.