Witnesses reported loud explosions Saturday night and there were unconfirmed reports of an attack by unidentified aircraft on an Iranian base in the Jabat Azzan region south of Aleppo. Syrian media claimed that the site was hit by Israeli aircraft. This is denied by Hizballah media. Other sources also reported people dead and wounded in the explosions. The attack is not confirmed by any official quarter. Neither is there any confirmation of separate reports of air attacks on Syrian government targets in the eastern Syrian province of Deir ez-Zour. DEBKAfile’s military sources reported earlier the outbreak of clashes between US-backed SDF and Syrian government forces in this part of Syria. Before dawn Saturday, US, British and French missiles struck chemical sites in Syria.