Syrian air defences confronted Israeli rockets on Syrian territories without specifying the location, state media reported early on Thursday quoting a military source.
Israel said it attacked almost all of Iran's military infrastructure in Syria on Thursday after Iranian forces fired rockets at Israeli-held territory for the first time in the most extensive military exchange ever between the two adversaries.
The IDF views this Iranian attack with severity.
Syrian state media said Israel struck a military outpost on Tuesday near the capital of Damascus. Tehran has issued several threats over the past month, saying that it would hurt Israel in response to a slew of attacks that were ascribed to the Israeli air force.
This attack comes on the heels of a Syrian report Tuesday accusing Israel of carrying out an attack on a military base south of Damascus, which was used by Iranian forces. Sirens on the Israeli side of the Golan Heights were heard.
A commander in the regional alliance supporting Syrian President Bashar al-Assad told Reuters that Israel's air force had struck an army base at Kisweh without causing casualties.
The Syrian Observatory for Human Rights reported Wednesday that Israel has attacked targets of the Syrian military on the outskirts of Quneitra in the Golan Heights.
According to a pro-Syrian regime news outlet called al-Mayadeen, any further strikes will be met by "larger" attacks on Israel. Israel, as it has typically done in similar incidents, neither confirmed nor denied a role. But for months, it has repeatedly said it will not accept a permanent Iranian military presence in Syria.
Iran and Lebanon's Hezbollah have been helping Assad beat back a seven-year-old rebellion.
Israeli Prime Minister Benjamin Netanyahu said Israel's air strikes were "appropriate" because Iran had "crossed a red line". "We will respond mightily to any attack on our territory".
"The meetings between us are always important and this one is especially so", Netanyahu said ahead of his departure.
Expectations of a regional flare-up, amid warnings from Israel that it was determined to prevent any Iranian military entrenchment in Syria, were stoked by U.S. President Donald Trump's announcement on Tuesday about the withdrawal from the 2015 nuclear deal between Iran and world powers. Russian Federation also considers Iran a strategic ally. After an uneventful night, the military on Wednesday called on residents to return to "full civilian routine", meaning studies and excursions would continue as usual, although the shelters would remain open.
Most of that purported evidence dated to the period before the 2015 accord was signed, although Netanyahu said Iran had also kept important files on nuclear technology since then and continued adding to its "nuclear weapons knowledge". "It means we are on a collision course".