Summary:
A U.S. airstrike in Afghanistan has accidentally killed five Afghan policemen, a military spokesman has said.

Full article:
(CNN) -- Five Afghan policemen were killed as result of a U.S. airstrike, according to an International Security Assistance Force public information officer, who said the incident was an accident and is under investigation. The strike occurred amid a joint operation between Afghan National Security Forces and the ISAF in the Batikot area of Afghanistan, Tech Sgt. Peter Dean said. Dean would not release any additional details. The ISAF is a NATO-led security mission in Afghanistan. U.N.: Civilian casualties in Afghanistan up by nearly a quarter . From CNN's Larry Register.