It appears based on recent reports that Israel did strike southern Syria, but, is denying being shot down.
I've updated since first published.
Israel denies report its jet was downed during Syria raid as ‘bogus’
The Israeli military has described reports that one of its jets was brought down while carrying out airstrikes in Syria as “bogus,” amid reports that the country’s air defense systems engaged and downed several “hostile targets”.Reuters
Israeli Defense Forces have refused to comment on the country’s alleged role in the attack, with a spokesperson saying that they’re not commenting on reports in foreign media. Yet the IDF has denied a particular report that it had lost a warplane during the raid on Syria.
A Syrian security source earlier told RIA Novosti that an Israeli jet was among the targets downed by the air defense. “Our air defense have downed an Israeli jet and four rockets before they could reach their targets,” the source said.
Meanwhile, Syria TV reported that a missile strike against Syria was deflected, without specifying what the downed objects were. The incident reportedly occurred in the Kiswah area, located 13 kilometers (8 miles) south of Damascus.
MOSCOW (Reuters) - Syrian air defence forces shot down an Israeli war plane and four missiles, Russia’s RIA news agency said on Thursday citing a Syrian security source.Drones near the Russian airbase shotdown"
“Our air defence forces shot down an Israeli war plane and four missiles before they reached the targets”, the source said, according to RIA. The source said all the missiles targeting the town of Kiswah were struck.
Telegram channel Directorate 4 reported, citing the Syrian media, that there were explosions in the sky over the city of Jableh, where the Russian Khmeimim airbase is located.If Israel was firing on Syria, at the same time, militants launched a drone attack on the Russian airbase- Should we assume it was coordinated?
According to preliminary data, air defense systems located in the base fired two rockets on militant drones.
JP: IDF confirms projectile fell in Golan as Syria claims it downed 'hostile targets
The IDF spokesperson’s Unit confirmed that Israel’s air defense system identified a one Syrian surface-to-air missile projectile fell in open territory in the Golan Heights after the Syrian regime said it had downed “hostile targets” over the southern part of the country on Thursday night.
UPDATE 5:40 EST
Israel carries out airstrikes in Syria reportedly targeting Iranian militias
Israel has reportedly carried out airstrikes in Southern Syria targeting Iranian militias, in its first publicised strike since September.Israel is NOT denying that they've attacked Syria. They are denying one of their planes was shotdown
The attack was first reported by Jordanian media channel Al-Hadath around 10 pm Damascus time. The strikes targeted the region of Al Kisweh, south of the Syrian capital, hitting Iranian militias’ targets, according to Al-Hadath's sources.
Syrian state media said Syrian defences has foiled the attack and continued to shoot down “enemy targets.”
Israel has denied reports, however, that one of its planes was hit by Syrian defences:
Al Kisweh has been hit by Israeli airstrikes at least twice before, with a big raid carried out last May.