The Israeli military said its jets struck a series of Iranian military targets in Syria early Monday, an announcement that was a rare departure from Israel's years-long policy of ambiguity regarding activities in neighboring war-torn Syria.
The military said the targets included munition storage facilities, an intelligence site and a military training camp.
The strikes were in response to a surface-to-surface rocket that Iranian forces fired toward Israel on Sunday that was intercepted by Israel's Iron Dome missile defense system over a ski resort in the Golan Heights. That followed a rare Israeli daylight air raid near the Damascus International Airport.
The Britain-based Syrian Observatory for Human Rights said Monday's pre-dawn strikes lasted for nearly an hour and were the most intense Israeli attacks since May. It said 11 were killed in the strikes. The Russian military said four Syrian troops were among those killed in airstrikes that targeted three different locations and damaged unspecified infrastructure at Damascus airport. There were no further details on the casualties or their nationalities.