The Green Zone of the Iraqi capital, Baghdad, home to the US embassy, and the Balad Air Base, where US troops are stationed, have come under mortar shell and rocket attacks, respectively, police sources say.

Two Katyusha rockets have hit the Green Zone of Baghdad, a fortified area in central part of the Iraqi capital, according to security and diplomatic sources.

The Iraqi military says unknown militants have launched three mortar shells into an air base just north of the capital Baghdad, where American trainers are present.