Israeli warplanes early on Friday morning struck a Hezbollah weapons depot outside Damascus, Arabic-language media outlets reported.
According to reports and a monitoring group, the three separate strikes were carried out near the Damascus International Airport, an area known to be a stronghold of the Iranian-backed terrorist group.
“Israeli warplanes targeted with rocket fire a weapons depot belonging to Hezbollah near the airport,” said Rami Abdel Rahman, director of the Syrian Observatory for Human Rights.
There were no reports of casualties or damage.
Images of the alleged Israeli strike uploaded to social media showed a smoke and large ball of fire from the area near the airport.
There was no immediate comment from Israel, Syria or Hezbollah on any of the reports.
Video uploaded to social media was said to show the Syrian military firing an anti-aircraft missile in response to the strike.
Israel has for years has been widely believed to have carried out airstrikes on advanced weapons systems in Syria — including Russian-made anti-aircraft missiles and Iranian-made missiles — as well as Hezbollah positions, but it rarely confirms such operations on an individual basis.
President Hassan Rouhani vowed on Friday that Iran would boost its ballistic missile capabilities despite criticism from the United States and also France.
His comments came as Iran displayed a new missile at a military parade marking the anniversary of the outbreak of its devastating 1980-1988 war with Saddam Hussein’s Iraq.
“Whether you like it or not, we are going to strengthen our military capabilities which are necessary for deterrence,” Rouhani said in a speech broadcast live on state television.
“We will strengthen not only our missiles but also our air, land and sea forces… When it comes to defending our country, we will ask nobody for their permission.”
Criticism by the Donald Trump administration of a 2015 nuclear deal between Iran and major powers, including the United States, has focused heavily on Tehran’s continuing missile program.
Tehran says that the missiles are entirely legitimate under the terms of the deal as they are not designed to carry a nuclear warhead.
But Washington says they breach the spirit of the agreement as they have the potential to carry a nuclear warhead and has imposed new sanctions over Tehran’s continuing launches and tests.
There has been some sympathy for the US position from France, whose President Emmanuel Macron said the deal could be expanded to ban missile tests and cut a sunset clause in the nuclear agreement that would see Iran resume some uranium enrichment from 2025.
But even he insisted that the core deal not be dumped.
Iran showed off a new missile, named Khoramshahr after a southwestern city, at an anniversary military parade in the capital.
“The Khoramshahr missile has a range of 2,000 kilometers (1,250 miles) and can carry multiple warheads,” the official IRNA news agency quoted Revolutionary Guards aerospace chief General Amir Ali Hajizadeh as saying.
Iran says all of its missiles are designed to carry conventional warheads only and has limited their range to a maximum of 2,000 kilometers, although commanders say they have the technology to go further.
That makes them only medium-range but still sufficient to reach Israel or US bases in the Gulf.