BEIRUT—
A Syrian rights group reported Monday that the death toll of civilians purportedly killed in airstrikes by the U.S.-led coalition on a village controlled by the Islamic State group in Syria has risen to 64, including 31 children, as the U.S. military said it is assessing whether to launch a formal investigation into the claim.

U.S. Army Col. Steve Warren, a Pentagon spokesman, said that so far there was no information to indicate there were civilians present in the village. He said U.S. Central Command is assessing the claims of civilian deaths in order to determine if a formal investigation should be opened.

Earlier, U.S. Central Command spokesman Maj. Curtis Kellogg said there was no indication that any civilians were killed in the airstrikes Thursday night on the northern Syrian village of Bir Mahli.

Warren said the aircraft targeted 50 Islamic State fighters and their camp. Kellogg said a vehicle was also hit.

But the Britain-based Syrian Observatory for Human Rights, which first reported the civilian deaths, said Monday at least 64 civilians were killed in the airstrikes on the remote village near the border city of Kobani.

More here: Rights Group: 64 Civilians Killed in Syria Coalition Strike