RAF Typhoon jets have conducted a mission with France's air force in a coordinated attack against an subterranean weapons facility in Syria used by the IS group, as stated by the UK Ministry of Defence.
The location, located using intelligence, was believed to be storing arms and explosives, the announcement noted, and was situated in mountainous terrain just above the ancient city of Palmyra in the heart of Syria.
"Our aircraft utilized laser-guided Paveway IV weapons to target a number of entry passages providing entry to the facility... initial indications indicate the strike was effective," the MoD said.
There was no indication of any civilian casualties in the strike on Saturday evening and each participating jet returned safely, the MoD added.
The Typhoon FGR4s were supported by a Voyager refuelling tanker.
IS - alternatively referred to as Daesh - imposed jihadist rule over parts of both Syria and Iraq prior to its 2019 collapse.
"This operation shows our UK leadership, and resolve to stand shoulder to shoulder with our allies, to eradicate any resurgence of Daesh and their dangerous and violent ideologies in the region," UK Defence Secretary John Healey remarked.
UK warplanes have carried out patrols over Syria to "prevent any attempted resurgence" of Islamic State after its defeat at the Baghuz confrontation in the year 2019, the ministry said.
"I want to thank every member of the UK armed forces involved in this operation for their expertise and their bravery," the Defence Secretary added. "They were among numerous British personnel stationed over the festive period. This mission, to remove militants who threaten our way of life, demonstrates how British military are prepared to act, continuously, protecting the UK domestically and strong abroad."
Last December, the United States armed forces carried out what it termed a "major assault" against Islamic State objectives in the country, subsequent to an attack killed two American soldiers and a civilian linguist in the Palmyra area.
The UN estimates IS still boasts roughly 5-7 thousand fighters in Iraq and Syria.
