(JNS) Israeli ambassador to Russia Gary Koren was summoned by Russian Deputy Foreign Minister Mikhail Bogdanov this week regarding an airstrike that killed 14 people on a Russian military base in Syria.

Though Israel has not officially taken responsibility for the missile strike on the Tiyas, or “T-4” air base outside Palmyra, both the United States and France have officially denied responsibility. Iranian media reported that seven Iranian military officials were killed in the strike, including a colonel in the Iranian Islamic Revolutionary Guard Corps air force.

Though Israeli officials insist they do not solicit permission from Russia in order to carry out operations in Russian-backed Syria, Russia expressed disapproval over not being informed in advance of the strike.

Unnamed U.S. officials, however, are alleged to have indicated that Israel informed Washington in advance of its plan to strike Tiyas.