TRIPOLI — An explosion believed to have been caused by a bomb ripped through the military intelligence building in Libya's eastern city of Benghazi at dawn Wednesday, causing damage to the structure and nearby homes but no injuries, a security official said. The blast took place hours after gunmen stormed a jail in Benghazi and freed Salem Al-Obeidi, the suspected killer of former rebel chief Abdel-Fattah Younis, according to a second security official. Younis served as Gaddafi's interior minister until he joined the anti-regime uprising last year. He was killed in July 2011. — AP