More than 1,100 inmates of a prison in southern Afghanistan, including militants, escaped after a Taliban suicide attack on the building, the NATO force in Afghanistan said Saturday. "More than 1,100 prisoners were able to escape," General Carlos Branco, a spokesman for the NATO's International Security Assistance Force told Agencies. "Afghanistan national security forces and ISAF forces have cordoned off the area to re-establish security and recapture the escapees," he added. "ISAF assets are used to follow the escapees," he said, without providing further details. The blast from the suicide attack "not only broke the entrance but also a large part of the wall," Branco said, referring to a suicide truck-bomb that militants used to break their way into the walled prison building. Afghan officials earlier said that at least 15 security guards were found dead.