(Adds details) BAGHDAD, Oct 11 (Reuters) - An "indirect fire" attack on a big U.S. military base in the Iraqi capital Baghdad overnight killed two coalition forces members and wounded 38, the U.S. military said on Thursday. A Western security contractor at the Camp Victory military base had said he heard nine mortar rounds being fired and four explosions inside the perimeter after dusk on Wednesday. In a statement, the military said two "third country nationals" had also been wounded. It gave no details on the nationalities of any of the victims. Besides U.S. troops, small numbers of soldiers from other countries are based at Camp Victory. Such attacks on the base, the U.S. military's sprawling headquarters near Baghdad airport, are relatively rare. Indirect fire attacks usually refer to mortars or rockets. Last month, an Iranian-made rocket killed one person at Camp Victory in an attack blamed on militants loyal to anti-American Shi'ite cleric Moqtada al-Sadr.
