A Syrian airbase reportedly housing Iran-affiliated forces came under air attack just before midnight on Wednesday by what observers say were Israeli planes.
The official Syrian news agency SANA said one Syrian soldier was killed and three wounded in attack. The T4 airbase is located near the city of Palmyra.
The Syrian Observatory for Human Rights, a UK-based war monitor, said the airstrike hit targets controlled by Iranian forces, including the communication tower at the airport. The monitoring group said one Syrian soldier and three Iran-backed fighters were killed and seven others, among them three Syrian soldiers wounded.
It did not identify the nationality of the non-Syrian fighters.
Fars news agency in Iran, affiliated with the Revolutionary Guard (IRGC), reported the attack quoting the Syrian news agency without referring to any Iranian presence in the airport.
Since 2017, Israel has intensified air attacks against Iran-affiliated forces in Syria with hundreds of strikes so far. It rarely acknowledges the attacks but always maintains that it will not allow the Iranian military to entrench itself in Syria and pose a threat to Israel.