KABUL, Afghanistan — Two wounded American soldiers and the body of a third have been evacuated from a battlefield in southern Afghanistan after hours of clashes, a U.S. military official said Wednesday.

“All casualties have been evacuated” following fighting the day before near the city of Marjah, in the southern Helmand province, U.S. Army Col. Mike Lawhorn said. The evacuation was delayed Tuesday when one helicopter took fire and was unable to land, and another was unable to take off.

The U.S. and NATO formally concluded their combat mission a year ago, shifting to a training and advisory role. But U.S. troops are still authorized to carry out counterterrorism raids and combat missions to defend themselves.

CBS Radio News correspondent Cami McCormick says U.S. Special Operations forces have been helping their Afghan counterparts go after Taliban militants in Helmand Province — the group’s stronghold — where there has been a worrying resurgence of the extremist group.