Israeli warplanes have carried out a strike on a military base in Syria, according to US officials.
The attack took place overnight on Wednesday near the Syrian coastal city of Latakia.
It reportedly targeted a shipment of Russian-made missiles, which were being delivered to Hizbollah in Lebanon.
Israel has said repeatedly that it will not allow Syrian President Bashar al-Assad to transfer rockets and missiles to militant organisations in the region - especially to his Hizbollah allies in southern Lebanon.