RAF Typhoon FGR4s have conducted a mission with French warplanes in a combined operation on an underground arms cache in Syria employed by the IS group, as stated by the UK Ministry of Defence.
The facility, identified by intelligence, was assessed as housing weapons and explosive materials, the statement said, and was situated in hills just to the north of the historic site of Palmyra in Syria's central region.
"The RAF jets utilized laser-guided Paveway IV weapons to hit a number of approach shafts providing entry to the facility... preliminary assessments indicate the target was engaged successfully," the MoD said.
There was no sign of any harm to civilians in the attack late on Saturday and each participating jet returned safely, the MoD added.
The British jets were backed up by a Voyager refuelling tanker.
Daesh - referred to as ISIS - imposed extremist governance over significant areas in Iraq and Syria before its territorial defeat in 2019.
"This action underscores our UK leadership, and determination to stand shoulder to shoulder with allied nations, to stamp out any resurgence of the terrorist group and their harmful and extremist ideologies in the Middle East," the British Defence Secretary the Defence Secretary said.
RAF aircraft have performed surveillance missions over Syrian airspace to "forestall any attempted comeback" of IS subsequent to its defeat at the climactic battle in Baghuz in 2019, the MoD reported.
"I extend gratitude to every member of the UK armed forces involved in this mission for their skill and their bravery," Healey added. "Including them were numerous British personnel on duty over the holidays. This action, to remove dangerous terrorists who threaten our safety, highlights how British military are prepared to act, throughout the year, keeping Britain secure at home and strong abroad."
During December, the US military executed what it described as a "major assault" on Daesh sites in the country, subsequent to an assault resulted in the deaths of two US troops and a civilian interpreter in Palmyra.
The UN estimates IS still maintains between 5,000 and 7,000 militants in Syria and Iraq.
