Kenyan police say they have asked U.S. officials from the FBI to help investigate the killing of three policemen.
Police commissioner Mathew Iteere said Saturday that he expects the FBI to join in the probe.
Kenyan police say they hope to draw on the FBI's experience dealing with explosives and tracing the origins of arms.
The three policemen were killed in two attacks in the capital, Nairobi, Friday.
One police officer was killed when a grenade was thrown into his vehicle. The two other officers were killed in a gun attack when two men on a motorbike opened fire.
Police say the two attackers were chased by police and shot and killed.
Officials are trying to identify the attackers and determine the motive for the killings.
Kenya Asks FBI For Help After 3 Police Killed
