Pakistani Taliban militants attacked a prison in northwestern Pakistan with machine guns and grenades Monday, freeing a number of jailed terrorists.
It is not clear how many inmates escaped from the prison in the town of Dera Ismail Khan. Authorities have imposed a curfew on the town. Police and soldiers have sealed off the area.
A Pakistani Taliban spokesman is claming responsibility for the attack. He tells news agencies that about 150 militants were involved, including several suicide bombers. The spokesman declared the attack a success.
Residents living near the prison say they heard several large explosions before the attackers opened fire with machine guns and rocket-propelled grenades.
About 5,000 inmates live in the prison, including as many as 250 convicted terrorists. About 40 are so-called "high-profile" prisoners.