An Israeli air strike on a Syrian air base led to public friction with the United States, with U.S. Special Envoy Tom Barrack calling it an “unnecessary escalation.”

Israel and the Trump administration have publicly diverged on the issue of Syria post-Assad, but the issue had faded into an uneasy peace after direct military clashes last year. On Tuesday, Israel launched a series of surprise air strikes against Syria’s Abu al Duhur Airbase in Idlib province, hitting it eight times in attacks targeting the runway and storage facilities, according to the Syrian state-run Ekhbariya. No casualties were reported.