A Kenyan police officer says a land mine has killed a policeman and critically wounded two others in northern Kenya.
Northeastern Provincial Police Chief Leo Nyongesa says Monday's incident happened in Dadaab, the world's largest refugee camp. Dadaab is home to nearly half a million refugees, mainly Somalis fleeing their country's 20-year-old civil war.
Kenya has been hit by more than a dozen grenade attacks and land mine explosions after sending its forces into Somalia in October to battle al-Qaida-linked militants. The latest blast in Dadaab is the third to hit security forces there _ another device did not properly explode.
Aid agencies say the Dadaab bombings have severely limited their movement and are preventing refugees from getting services.