The US forces arrested on Sunday eight gunmen, including a leader of an armed group, in Tikrit Province, north of Baghdad. Spokesperson for Task Force Liberty told Kuwait News Agency that members of the force arrested eight gunmen in a burst and search operation, noting that the gunmen were involved in a number of attacks with explosives against the coalition forces. The source said that one of the gunmen is a leader of an armed group, noting that the detainees were possessing weapons and different types of explosives.Meanwhile, the Iraqi Police on Sunday found a weapons hideout in a voting center in Kirkuk, northern Iraq. A press release issued by the Informational Team in north central Iraq said today that the members of Kirkuk Police found the hideout in a school used currently as a polling station in northern Kirkuk Province. It added that the hideout contained six 60mm mortar rounds, two rocket lunching assemblies, detonator, and an explosive belt, noting that the weapons were clean and wrapped in fabrics. The Independent Commission for Elections in Iraq opened 25 voting centers in Kirkuk Province in preparation for the referendum process on the permanent Iraqi constitution.