Volunteers dig through the rubble of a mosque following a reported airstrike on a mosque in the village of Al-Jineh in Aleppo province late on March 16, 2017.

Investigators Claim U.S. Failed To Prevent Civilian Casualties In Airstrike On Syrian Mosque

Several organizations, including Human Rights Watch, Forensic Architecture and Bellingcat, have investigated the U.S.-coalition bombing of a mosque in Syria last month. All found that the U.S. failed to prevent civilian casualties and suggested the attack could constitute a war crime.