ISLAMABAD: Pakistani Taliban disguised as policemen attacked a prison in the country's northwestern town of Dera Ismail Khan, freeing more than 300 prisoners late on Monday. Malik Qasim Khattak, advisor to the ministry of prisons, said that around 50 to 60 gunmen attacked the jail with bombs and guns before entering into the detention facility. "They detonated about 60 bombs inside the facility which caused the collapse of prison wall. The assailants succeeded in freeing more than 300 prisoners," Khattak said, adding that the militants blew up two electricity transformers which created complete darkness.