ISLAMABAD, Pakistan (CNN) -- Eight police personnel were killed in an early-morning attack Saturday on a police security checkpoint in Pakistan's Punjab province, a police official said.
The attack happened at 3:30 a.m. Saturday (2230 GMT Friday). Some personnel were asleep in the checkpost guard quarters and others were standing guard when unknown militants attacked the checkpost from their vehicle, a police official from the Mianwali district of the province said.
All the men were killed by gunfire. The attackers then blew up the checkpost with explosives, the police official said.
Police told CNN that an attack a few days ago also targeted a checkpoint in the Mianwali district. Rocket fire damaged the top level of building but no one was killed in the attack.