RAF Typhoon FGR4s have conducted a mission with French aircraft in a coordinated attack on an underground arms cache in Syrian territory operated by the Daesh militant organization, per a report from the UK's MoD.
The site, located using intelligence, was believed to be containing munitions and bombs, the statement said, and was positioned in hills just above the historic site of Palmyra in Syria's central region.
"The RAF jets employed precision-guided Paveway IV munitions to hit a number of approach shafts down to the site... preliminary assessments suggest the objective was successfully hit," the ministry announced.
There was no indication of any civilian casualties 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 - referred to as ISIS - established extremist governance over large swathes of Iraq and Syria before its territorial defeat in 2019.
"This action demonstrates the UK's leading role, and determination to stand shoulder to shoulder with our partners, to stamp out any revival of Daesh and their dangerous and violent ideologies in the Middle East," UK Defence Secretary John Healey said.
RAF aircraft have carried out patrols over Syria to "deter any attempted comeback" of Islamic State subsequent to its routing at the Baghuz confrontation in the year 2019, the MoD reported.
"I want to thank the personnel of our armed forces who took part in this mission for their expertise and their valour," Healey said. "Including them were thousands of British troops stationed over Christmas and New Year. This mission, to eliminate terrorist threats who threaten our safety, highlights how our armed forces are prepared to act, all year round, keeping Britain secure domestically and influential overseas."
During December, the American forces carried out what it termed a "massive strike" targeting Daesh sites in the country, after an attack resulted in the deaths of two American soldiers and a civilian interpreter in Palmyra.
The UN reports Daesh still boasts an estimated 5,000 to 7,000 combatants in Iraq and Syria.
