Israel launched on Wednesday a series of strikes on former army barracks in Kiswa, in the southwestern Damascus countryside, two Syrian army sources and state-run El Ekhbariya TV reported, making it the second attack within 24 hours.
Asked for a response, an Israeli military spokesperson said: "We do not comment on foreign reports."
There was no immediate comment on any casualties or damage.
Significant military outposts used by pro-Iran militias during Assad's regime
The Kiswa region and Jabal Manea were among the most significant military outposts used by pro-Iranian militias during the Assad era.
Israel has stepped up its incursions in southern Syria, and the latest strikes coincide with security talks between Damascus and its long-time foe aimed at reaching a deal to reduce tensions.
This is a developing story.