U.S. forces battled insurgents loyal to radical Shiite cleric Muqtada al-Sadr in the Baghdad slum of Sadr City on Tuesday, the U.S. military said. At least 33 people were killed and 193 injured in the fighting, Iraqi authorities said.
U.S. Army Capt. Brian O'Malley said several American soldiers have been injured, but that he did provide the exact figure.
The fighting erupted when militants attacked U.S. forces carrying out routine patrols, O'Malley said.
"We just kept coming under fire," he said.