ISLAMABAD, July 30 (Xinhua) -- At least seven policemen were killed and 22 others injured when a group of militants attacked a police checkpoint in Hangu district of Pakistan's northern province of Khyber Pakhtunkhwa, police said late Wednesday.
District Police Officer Tariq Habib told local media that security personnel returned fire, killing eight militants and injuring six others.
A clearance operation was continuing in the area to eliminate any remaining militants, police said.
No group has claimed responsibility for the attack. ■
