Two U.S. soldiers were killed and two wounded in attacks north of the Iraqi capital Baghdad on Monday, the U.S. military said. A U.S. military spokesman said the soldiers were killed in separate attacks early Monday near the town of Balad, about 60 miles north of Baghdad. The spokesman said one soldier was killed and two were wounded when they were ambushed with rocket-propelled grenade and small arms fire at 7:40 a.m. (0440 GMT). A few minutes later a U.S. soldier helping to transport detainees was killed by a roadside bomb a few miles away. The attacks brought to 162 the number of U.S. soldiers killed in guerrilla attacks in Iraq since President Bush declared major combat over on May 1. That figure does not include the 17 soldiers who were killed when two U.S. Black Hawk helicopters collided and crashed in the northern city of Mosul Saturday night. The U.S. military says it is still investigating the incident. Balad is part of the so-called "Sunni Triangle" north and west of Baghdad where ousted president Saddam Hussein has close tribal ties and anti-American resistance is strongest. **PHOTO CAPTION*** A U.S. Army soldier stands next to an M1 Abrams tank during a patrol in Baghdad's western end of Abu Ghraib, Monday, Nov 17, 2003.