Israel says it has struck almost all of Iran’s military infrastructure inside Syria in its biggest assault since the start of the civil war there.
The strikes came after 20 rockets were fired at Israeli military positions in the occupied Golan Heights overnight.
Syria’s military said the Israeli “aggression” had killed three people.
There was no immediate comment from Iran, whose deployment of troops to Syria to help President Bashar al-Assad has alarmed Israel.
Iran has repeatedly called for an end to the existence of the Jewish state.
Israel’s military had been anticipating an attack by Iranian forces after reportedly carrying out a number of strikes on their facilities in Syria in recent months. They included one on an airbase in April that killed seven Iranian troops.