RAF Typhoon jets have conducted a mission with French warplanes in a coordinated attack targeting an underground arms cache in Syrian territory operated by the IS group, according to the UK's MoD.
The site, located using reconnaissance, was believed to be storing arms and explosives, the announcement noted, and was situated in mountains just to the north of Palmyra in central Syria.
"Our fighter planes utilized laser-guided Paveway IV weapons to target a number of approach shafts leading to the depot... initial indications indicate the strike was effective," officials stated.
There was no sign of any civilian impact in the strike conducted Saturday night and every plane involved returned to base without incident, the MoD added.
The Typhoon FGR4s were assisted by a Voyager tanker plane.
Daesh - also known as the so-called Islamic State - established jihadist rule over parts of Iraq and Syria until 2019.
"This action demonstrates our UK leadership, and determination to operate in unison with our allies, to eradicate any revival of IS and their violent and radical beliefs in the area," the British Defence Secretary the Defence Secretary stated.
UK warplanes have performed surveillance missions over Syrian airspace to "deter any efforts to regroup" of Islamic State following its military defeat at the battle of Baghuz in 2019, the authorities noted.
"I must thank every member of British forces participating in this mission for their skill and their valour," he added. "They were part of a great many British troops deployed over the holidays. This action, to remove dangerous terrorists who pose a risk to our safety, highlights how British military are ready to step up, all year round, keeping Britain secure within its borders and powerful internationally."
Last December, the American forces conducted what it called a "major assault" against Daesh sites in the country, following an assault claimed the lives of two US servicemembers and a local interpreter in Palmyra.
The UN says Daesh still boasts an estimated 5,000 to 7,000 militants in both countries.
