2 Iraqi civilian drivers killed in incidents with U.S. troops

Two civilian drivers in northern Iraq were killed in incidents involving U.S. troops, one in an "escalation of force" shooting and the other in a "head-on collision," the military said Saturday.

The shooting occurred Friday between Tikrit and Balad when a military convoy "stopped on a rural road after one of its vehicles broke down."

The other incident occurred Thursday near Khalis, where a driver died in a "head-on collision" with a U.S. Army Stryker vehicle.