Syrian anti-aircraft defences have shot down missiles fired at two of its airbases, according to the country’s state-run television.
It reportedly responded to a missile attack over Homs, which targeted Shayrat air base late on Monday night.
And more missiles were intercepted over another base northeast of the capital Damascus, state television and pro-Iranian Hezbollah media said.
State television showed pictures of a missile that was shot in the air above the air base, but it did not specify in its reports who may be behind the attack.
A Pentagon spokesman said there was no US military activity in that area tonight.
Asked about the missile attack, an Israeli military spokesman said: “We don’t comment on such reports.”
Shayrat air base was targeted last year in a US cruise missile attack in response to a chemical attack that killed at least 70 people, including children, on the rebel-held town of Khan Sheikhoun.
Israel has struck Syrian army locations many times in the course of the conflict, hitting convoys and bases of Iranian-backed militias that fight alongside Syrian President Bashar al- Assad’s forces.
Israel has long said Iran was expanding its influence in a belt of territory that stretches from the Iraqi border to the Lebanese border, where Israel says Iran supplies Hezbollah with arms.