BEIRUT (AP) — The Russian military said Monday the Israeli Air Force was behind the airstrike in Syria and had launched eight missiles on a Syrian air base.

A Syrian military official also said Israel was behind the attack.

A Syrian war-monitoring group says 14 people, including Iranians, were killed in the missile attack early in the morning on an air base in central Syria.

Rami Abdurrahman, who heads the Britain-based Syrian Observatory for Human Rights, says most of the 14 killed were either Iranians or members of Iran-backed groups.

Russia’s Defense Ministry said two Israeli fighter jets launched the attack on the T4 air base in central Syria from Lebanon’s air space in the early hours on Monday.