A U.S. service member was detained Sunday after he shot at Afghan civilians in Kandahar province, the NATO-led coalition said.
Capt. Justin Brockhoff with the International Security Assistance Force (ISAF) said the incident took place off base and wounded "multiple" civilians.
The injured Afghans were being treated in ISAF facilities.
Brockhoff said officials do not yet have a motive for the shooting, which is under investigation by both NATO and Afghan officials.
"This is a deeply regrettable incident and we extend our thoughts and concerns to the families involved," a statement from ISAF said.
Kandahar has been one of the areas that has seen protests and deadly violence since news emerged late last month that U.S. troops mistakenly burned Qurans and other religious materials.
Civilian casualties as a result of action by the NATO-led international coalition have long caused anger in Afghanistan, adding pressure on international forces to withdraw.
The international force has said avoiding civilian casualties is a high priority.FULL STORY