(KUNA) -- Iraqi government said on Thursday Al Qaeda leader was killed and eight insurgents were arrested. The statement did not report the leader's identity or nationality. The detainees have connections with insurgency leaders. They are also involved in killing policemen and destroying police stations. They are suspected of killing more than 20 members of the National guards, the statement added. Security forces seized great amounts of substances used in manufacturing RPGs and explosive devices.The US army declared today it killed Al Qaeda member in Baghdad. It is uncertain yet whether he is the same man mentioned in the government's statement. Multi-National Forces information center did not give any details of the raid in which he was killed.