The Israel Defense Forces said the overnight operation targeted the elite Quds Force of the Iranian Revolutionary Guards, as well as Syrian air defences.
The Israel Defense Forces (IDF) announced the start of its operation in a tweet early on Monday.
It said the Quds Force sites targeted included a munitions storage facility and a position near Damascus International Airport.
The IDF also said that “dozens of Syrian surface-to-air missiles were launched, despite clear warnings to avoid such fire”.
Syria’s state-run news agency quoted a military source as saying that the country’s air defences had shot down most of “hostile missiles”.
Israel said it acted after the Quds Forces launched a rocket from Syria over the Golan Heights on Sunday.
It said the rocket had been intercepted.