Meanwhile, in Syria, a U.S.-led coalition airstrike has reportedly killed at least 40 civilians who were being imprisoned by ISIS in the eastern Syrian town of al-Mayadeen on Monday. The airstrike was reported by both the Syrian Observatory for Human Rights and the local news outlet DeirEzzor24. The U.S.-led coalition acknowledges carrying out airstrikes on the town on Sunday and Monday and striking ISIS-controlled buildings and infrastructure. The coalition says it is investigating the reports of civilian casualties.