British Air Force Typhoon jets have operated alongside French warplanes in a joint strike on an subterranean weapons facility in Syria employed by the IS group, according to the UK Ministry of Defence.
The location, identified by reconnaissance, was assessed as containing munitions and bombs, the statement said, and was located in mountains just to the north of the ancient city of Palmyra in the heart of Syria.
"Our fighter planes utilized precision-guided Paveway IV munitions to hit a number of entry passages leading to the site... early reports suggest the target was engaged successfully," the MoD said.
There was no sign of any harm to civilians in the strike conducted Saturday night and each participating jet returned safely, the defence officials confirmed.
The British jets were backed up by a Voyager aerial refuelling aircraft.
The Islamic State group - referred to as the so-called Islamic State - enforced militant control over parts of both Syria and Iraq until 2019.
"This action underscores British leadership, and resolve to work closely with our partners, to eliminate any re-emergence of Daesh and their violent and radical beliefs in the Middle East," UK Defence Secretary the Defence Secretary remarked.
UK warplanes have conducted patrols over Syria to "prevent any attempted resurgence" of IS after its defeat at the battle of Baghuz in 2019, the authorities noted.
"I extend gratitude to every member of our armed forces involved in this strike for their skill and their valour," Healey added. "They were among thousands of British troops deployed over the festive period. This operation, to eliminate dangerous terrorists who endanger our safety, highlights how British military are prepared to act, continuously, protecting the UK within its borders and powerful internationally."
During December, the United States armed forces carried out what it called a "massive strike" on IS targets in Syria, subsequent to an attack resulted in the deaths of two US servicemembers and a local interpreter in the Palmyra area.
The United Nations says Daesh still maintains roughly 5-7 thousand militants in Iraq and Syria.
