Israel has bombed an Iranian diplomatic facility in Syria in a strike that killed a top Islamic Revolutionary Guard Corps commander, according to Iran’s state media.

“[Israel has] gone beyond the red line,” Iranian Ambassador to Syria Hossein Akbari said Monday on an Iranian state media broadcast. “Iran has never left any crimes of the Zionist regime without an answer. So, definitely, the Zionists and their allies know that in proportion to the crime they have committed, they need to await a proper response on the basis of Iran’s choosing at the right place and time.