Three U.S. service members were killed Tuesday when a roadside bomb detonated next to their vehicle in the embattled province of Ghazni, U.S. military officials said.
Three other U.S. service members were wounded along with a U.S. military contractor, they added. The survivors were evacuated from the area and are receiving medical attention. The names of the dead and the injured were not immediately released.
Separately, the military said Tuesday that a preliminary review has found that an Afghan commando likely accidentally shot a U.S. Army Ranger on Saturday during a raid on a compound in a remote part of the country. The U.S. soldier died later that day.
Combined, the deaths bring the number of U.S. troops killed in combat in Afghanistan this year to 13. Five of those deaths occurred this month.