Security forces in Yemen's port of Aden have arrested 30 people during a two day hunt for suspected Al-Qaeda operatives behind an attack on an intelligence building, a security official and the Defense Ministry said. Operations would continue after security forces swept door-to-door through Aden's Saada area Friday seeking out suspected militants, the Defense Ministry said in a statement. Yemen has accused Al-Qaeda of the attack last Saturday in which militants in military uniform raided the police intelligence building, killing seven security officers, three women and a 7-year-old boy, and freeing several detainees. The security official said clashes had broken out before dawn Friday. Police rounded up 30 suspects throughout the day, nine of whom were charged with Al-Qaeda links, while the rest were charged with participating in rioting. One detainee died. Security officials said the man died from an asthma attack.