British Air Force Typhoon FGR4s have operated alongside French aircraft in a combined operation on an underground arms cache in Syria operated by the Islamic State group (IS), per a report from the UK Ministry of Defence.
The facility, identified by reconnaissance, was believed to be housing weapons and explosive materials, the announcement noted, and was located in mountainous terrain just above the historic site of Palmyra in the heart of Syria.
"Our fighter planes employed laser-guided Paveway IV weapons to target a number of access tunnels down to the facility... early reports suggest the objective was successfully hit," the MoD said.
There was no sign of any harm to civilians in the operation on Saturday evening and all the aircraft returned safely, the defence officials confirmed.
The British jets were assisted by a Voyager refuelling tanker.
Daesh - also known as ISIS - established militant control over significant areas in Syria and Iraq until 2019.
"This strike demonstrates the UK's leading role, and commitment to work closely with allied nations, to eliminate any re-emergence of Daesh and their violent and radical beliefs in the Middle East," UK Defence Secretary the minister said.
UK warplanes have carried out surveillance missions over Syria to "prevent any efforts to regroup" of the group after its routing at the Baghuz confrontation in 2019, the authorities noted.
"I extend gratitude to all the members of British forces participating in this strike for their expertise and their valour," Healey said. "They were part of thousands of UK service members stationed over Christmas and New Year. This action, to eliminate militants who threaten our security, demonstrates how British military are always on standby, continuously, protecting the UK domestically and powerful internationally."
In December, the United States armed forces conducted what it called a "large-scale strike" against Islamic State objectives in the country, after an ambush resulted in the deaths of two US servicemembers and a local interpreter in Palmyra.
The UN reports Daesh still maintains roughly 5-7 thousand fighters in Syria and Iraq.
