4 Iraqi servicemen wounded by rocket attack on air base

Four members of Iraq's military were wounded Sunday in a rocket attack targeting an air base just north of Baghdad where American trainers are present, Iraqi security officials said.The attack by at least six rockets came just days after Iran fired ballistic missiles at two bases in Iraq that house U.S. forces, causing no casualties.Recent heightened tensions between the U.S. and Iran were sparked last month when a rocket attack killed an American contractor at a base in Iraq.