Gunmen shot dead two Kenyan policemen Tuesday in the latest attack in the restive border region with war-torn Somalia, a top policeman said.
"The officers were attacked while on patrol," said regional police chief Charlton Mureithi, of the attack in the eastern garrison town of Garissa.
"Two of them were killed, and the other one has been taken to hospital with injuries," he added.
Kenya has suffered a string of attacks since its troops invaded southern Somalia in late 2011 to attack Al-Qaeda linked Shebab insurgents.
Attackers have set off bombs and hurled grenades in the capital Nairobi, while gunmen have killed both security officials and civilians along Kenya's border with Somalia.
The attacks are regularly blamed on Shebab insurgents or their sympathisers, although the extremists do not specifically claim the killings.
The Shebab still control large parts of southern Somalia, despite African Union troops, allied Somali forces and Ethiopian soldiers having wrested control of several key towns from them.