Israel's military, however, said Tuesday its forces were on high alert near its border with Syria after spotting Iranian activity and was urging civilians in the Golan Heights near Syria to prepare bomb shelters.
The press service of the Israel defense forces said that the Iranian armed factions operating in Syria, in the night of Thursday, may 10, fired about 20 rockets at IDF positions on the Syrian-Israeli border.
The attack took place at around 12.10 a.m.
A Western diplomat doubted the Iranians would retaliate against the United States in Syria because of the risk of Israeli retaliation, or in Iraq, where Tehran's influence has vastly expanded since the 2003 U.S. invasion that toppled former dictator Saddam Hussein.
The threat of Iran nevertheless persists, especially in Syria, which it is trying to transform into a forward military base against Israel. Further waves of missiles followed.
The Syrian Observatory for Human Rights said the overnight airstrike near Damascus killed at least 15 people, including eight Iranians.
Israeli officials believe Iran's Revolutionary Guards are leading efforts to retaliate against Israel, using its proxies in Syria - Hezbollah forces and Shiite militias - to attack the Jewish state, Hadashot reported.
He said: "A few of those rockets were intercepted".More news: AFC Asian Cup 2019: Subrata Bhattacharya
The IDF is responding to the rocket attacks, but the military had no more information on those responses at this time.
Syrian media said it was the first time in years that Syrians had fired at Israeli forces in the Golan Heights.
In the early hours of the morning, explosions were heard in Damascus, while live images were broadcast on television showing projectiles above the Syrian capital and several missiles destroyed by Syrian anti-aircraft systems. There was no official confirmation.
In February, Israel accused Iranian forces at the T-4 base in central Syria of sending a drone into Israeli territory.
Israel has been warning for weeks that it will not accept Iran entrenching itself militarily in neighboring Syria, where Tehran is supporting President Bashar al-Assad's regime in the civil war. On April 30, Israel was said to have struck government outposts in northern Syria, killing more than a dozen pro-government fighters, many of them Iranians.
President Donald Trump is set to announce Tuesday whether the US will exit the 2015 agreement between Iran and world powers.
In his announcement, Trump cited Israel's publication last week of what it said was a trove of seized, secret Iranian documents showing Tehran had a past nuclear weapons programme.
Israel has neither confirmed nor denied most of the airstrikes.