Syrian opposition activists say an airstrike has killed at least eight people in an eastern town that borders Iraq.
The activists say the airstrike late Monday in Boukamal was most likely carried out by the U.S.-led coalition that has been targeting ISIS in Syria and Iraq.
Airstrikes by the U.S.-led coalition have killed dozens of civilians over the past several weeks as the battle against the extremists intensifies.
The Britain-based Syrian Observatory for Human Rights said Tuesday that the airstrike killed 13 civilians, including women and children, as well as three ISIS fighters.
Opposition activist Omar Abu Laila, who is from the province where the strike took place and currently lives in Europe, said eight people were killed, including an Iraqi family of four.