Iraqi security forces, backed by U.S. troops, have arrested a hardline Sunni cleric and about two dozen others after a raid of his Baghdad mosque uncovered weapons caches along with photographs of recent attacks on American troops, the U.S. military and the Iraqi National Guard said. Sheik Mahdi al-Sumaidaei, the head of the Supreme Association for Guidance and Daawa, a conservative Sunni organization, was detained Thursday, along with 25 others, the U.S. military said. The raid took place at the Um al-Tuboul mosque, a major landmark in western Baghdad, said Iraqi National Guard Col. Mohammed Abdullah said, who said the cleric and 27 others had been detained The U.S. command said American troops "provided the outer cordon" while the 90-minute raid was carried out by Iraqi troops. Two U.S. soldiers were wounded by snipers during the raid, the military statement said. Abdullah said they also found TNT explosives, lists with names of Iraqi officers employed in the U.S.-trained Iraqi National Guard, as well as photographs of recent attacks on U.S. soldiers and foreign convoys on the airport road.