Officials say Israeli warplanes attacked a military target inside Syria.
An Obama administration official confirmed the attack happened overnight today but provided no details.
Another security official said that the attack occurred in the Syrian port city of Latakia and that the target was Russian-made SA-125 missiles.
The officials spoke on condition of anonymity because they were not authorised to publicly discuss the attack.
At least twice earlier this year Israel launched airstrikes on shipments of missiles inside Syria.
