RAF Typhoon jets have joined forces with French aircraft in a combined operation against an hidden munitions depot in Syria used by the Islamic State group (IS), according to the UK's MoD.
The site, identified by surveillance, was believed to be containing munitions and bombs, the announcement noted, and was located in mountains just to the north of Palmyra in Syria's central region.
"Our fighter planes used precision-guided Paveway IV munitions to target a number of access tunnels providing entry to the facility... initial indications indicate the objective was successfully hit," officials stated.
There was no evidence of any civilian impact in the strike late on Saturday and every plane involved made a safe return, the defence officials confirmed.
The Typhoon fighters were assisted by a Voyager refuelling tanker.
IS - alternatively referred to as ISIS - enforced jihadist rule over parts of Iraq and Syria before its territorial defeat in 2019.
"This operation underscores our UK leadership, and resolve to stand shoulder to shoulder with allied nations, to stamp out any re-emergence of Daesh and their dangerous and violent ideologies in the area," Britain's Defence Chief John Healey remarked.
UK warplanes have conducted surveillance missions over Syrian airspace to "deter any attempted resurgence" of the group after its defeat at the battle of Baghuz in the year 2019, the authorities noted.
"I extend gratitude to every member of our armed forces who took part in this strike for their expertise and their valour," he said. "They were among thousands of British troops deployed over the holidays. This mission, to remove dangerous terrorists who endanger our way of life, demonstrates how our armed forces are always on standby, continuously, keeping Britain secure domestically and powerful internationally."
During December, the United States armed forces executed what it called a "major assault" on Islamic State objectives in Syria, after an ambush claimed the lives of two US troops and a civilian interpreter in the Palmyra area.
The United Nations estimates IS still boasts an estimated 5,000 to 7,000 combatants in Iraq and Syria.
