RAF Typhoon jets have conducted a mission with French aircraft in a combined operation on an underground arms cache in Syrian territory operated by the Daesh militant organization, as stated by the British defence ministry.
The site, located using reconnaissance, was believed to be containing munitions and bombs, the announcement noted, and was situated in hills just to the north of the ancient city of Palmyra in Syria's central region.
"Our fighter planes employed laser-guided Paveway IV weapons to strike a series of entry passages down to the facility... preliminary assessments are that the objective was successfully hit," officials stated.
There was no evidence of any civilian casualties in the attack on Saturday evening and every plane involved returned to base without incident, the defence officials confirmed.
The British jets were supported by a Voyager aerial refuelling aircraft.
The Islamic State group - referred to as the so-called Islamic State - established militant control over significant areas in Syria and Iraq until 2019.
"This action demonstrates British leadership, and determination to stand shoulder to shoulder with our partners, to stamp out any re-emergence of Daesh and their violent and radical beliefs in the area," the British Defence Secretary John Healey said.
UK warplanes have conducted surveillance missions over Syrian airspace to "deter any efforts to regroup" of the group following its routing at the Baghuz confrontation in 2019, the ministry said.
"I must thank all the members of British forces participating in this operation for their expertise and their bravery," the Defence Secretary added. "They were among thousands of British personnel deployed over the holidays. This operation, to take out militants who threaten our way of life, shows how our armed forces are always on standby, all year round, ensuring Britain's security domestically and influential overseas."
Last December, the US military executed what it described as a "large-scale strike" targeting Daesh sites in the country, following an attack resulted in the deaths of two US troops and a civilian interpreter in the Palmyra area.
The UN estimates IS still boasts roughly 5-7 thousand fighters in Iraq and Syria.
