RAF Typhoon jets have joined forces with French aircraft in a joint strike on an hidden munitions depot in Syrian territory used by the IS group, according to the UK Ministry of Defence.
The location, identified by intelligence, was thought to be storing arms and explosives, the announcement noted, and was situated in hills just to the north of the ancient city of Palmyra in Syria's central region.
"Our aircraft employed laser-guided Paveway IV weapons to strike a number of approach shafts leading to the depot... preliminary assessments are that the strike was effective," officials stated.
There was no evidence of any civilian casualties in the attack conducted Saturday night and each participating jet made a safe return, the ministry further stated.
The Typhoon FGR4s were assisted by a Voyager refuelling tanker.
The Islamic State group - referred to as Daesh - imposed jihadist rule over parts of Iraq and Syria until 2019.
"This action shows our UK leadership, and commitment to work closely with allied nations, to stamp out any revival of the terrorist group and their dangerous and violent ideologies in the area," Britain's Defence Chief the minister remarked.
RAF aircraft have conducted surveillance missions over Syrian airspace to "forestall any attempted resurgence" of Islamic State following its routing at the Baghuz confrontation in the year 2019, the authorities noted.
"I want to thank all the members of our armed forces involved in this operation for their professionalism and their bravery," the Defence Secretary said. "Including them were a great many British personnel deployed over the holidays. This action, to remove dangerous terrorists who threaten our way of life, demonstrates how UK forces are always on standby, continuously, ensuring Britain's security domestically and strong abroad."
Last December, the United States armed forces conducted what it described as a "large-scale strike" on Islamic State objectives in Syria, following an attack resulted in the deaths of two American soldiers and a civilian interpreter in the Palmyra area.
The UN says Daesh still has an estimated 5,000 to 7,000 militants in both countries.