RAF Typhoon FGR4s have joined forces with French aircraft in a combined operation targeting an underground arms cache in Syrian territory employed by the Daesh militant organization, per a report from the UK Ministry of Defence.
The site, identified by surveillance, was assessed as housing weapons and explosive materials, the release indicated, and was positioned in mountains just to the north of the ancient city of Palmyra in Syria's central region.
"Our aircraft utilized precision-guided Paveway IV munitions to target a series of approach shafts providing entry to the depot... preliminary assessments are that the objective was successfully hit," the ministry announced.
There was no sign of any civilian casualties in the strike on Saturday evening and each participating jet returned to base without incident, the MoD added.
The British jets were assisted by a Voyager refuelling tanker.
IS - alternatively referred to as the so-called Islamic State - established militant control over large swathes of Syria and Iraq prior to its 2019 collapse.
"This operation underscores British leadership, and resolve to operate in unison with our partners, to stamp out any re-emergence of Daesh and their harmful and extremist ideologies in the region," the British Defence Secretary John Healey remarked.
British military aircraft have conducted overwatch operations over Syria to "forestall any efforts to regroup" of IS subsequent to its routing at the climactic battle in Baghuz in 2019, the ministry said.
"I must thank the personnel of the UK armed forces participating in this strike for their skill and their bravery," he said. "Including them were a great many British troops deployed over the festive period. This action, to remove militants who pose a risk to our way of life, shows how British military are ready to step up, continuously, keeping Britain secure at home and influential overseas."
In December, the American forces carried out what it called a "major assault" on IS targets in Syria, subsequent to an assault claimed the lives of two US servicemembers and a civilian interpreter in Palmyra.
The UN says Islamic State still boasts between 5,000 and 7,000 combatants in Iraq and Syria.