RAF Typhoon FGR4s have joined forces with French aircraft in a combined operation targeting an subterranean weapons facility in Syrian territory used by the IS group, per a report from the British defence ministry.
The site, located using reconnaissance, was assessed as housing weapons and explosive materials, the statement said, and was situated in hills just north of Palmyra in central Syria.
"The RAF jets used laser-guided Paveway IV weapons to hit a series of approach shafts down to the site... initial indications indicate the objective was successfully hit," the ministry announced.
There was no evidence of any civilian impact in the strike on Saturday evening and every plane involved returned safely, the MoD added.
The Typhoon fighters were supported by a Voyager aerial refuelling aircraft.
Daesh - alternatively referred to as ISIS - enforced militant control over large swathes of both Syria and Iraq until 2019.
"This operation underscores our UK leadership, and commitment to work closely with our allies, to eradicate any re-emergence of the terrorist group and their dangerous and violent ideologies in the region," the British Defence Secretary John Healey said.
British military aircraft have carried out patrols over Syria to "prevent any attempted comeback" of IS after its military defeat at the Baghuz confrontation in the year 2019, the ministry said.
"I must thank all the members of our armed forces involved in this operation for their professionalism and their bravery," the Defence Secretary commented. "They were part of a great many British personnel stationed over the festive period. This operation, to remove dangerous terrorists who threaten our security, shows how UK forces are prepared to act, continuously, protecting the UK domestically and influential overseas."
During December, the United States armed forces conducted what it described as a "large-scale strike" on Islamic State objectives in Syria, after an ambush resulted in the deaths of two US troops and a civilian linguist in the Palmyra area.
The U.N. says Daesh still maintains between 5,000 and 7,000 militants in both countries.
