The Syrian government and its ally Russia have blamed Israel for a deadly attack on a Syrian military airport.
Monday’s attack hit the Tiyas airbase, known as T4, near the city of Homs. Observers say 14 people were killed.
Israel, which has previously hit Syrian targets, has not commented. Syria initially blamed the US for the strike.
The incident comes amid international alarm over an alleged chemical attack on a Syrian rebel-held town. The US and France had threatened to respond.
US President Donald Trump said there would be a “big price to pay” for the alleged chemical attack in Douma, in the Eastern Ghouta region, near the capital Damascus. He branded Syria’s President Bashar al-Assad an “animal”.