British Air Force Typhoon jets have joined forces with France's air force in a coordinated attack targeting an subterranean weapons facility in Syria used by the IS group, as stated by the British defence ministry.
The site, located using surveillance, was believed to be containing munitions and bombs, the release indicated, and was located in hills just above the historic site of Palmyra in central Syria.
"Our fighter planes employed Paveway IV guided bombs to strike a number of approach shafts providing entry to the depot... initial indications are that the objective was successfully hit," the MoD said.
There was no sign of any civilian casualties in the operation late on Saturday and all the aircraft returned safely, the ministry further stated.
The Typhoon FGR4s were backed up by a Voyager tanker plane.
IS - alternatively referred to as ISIS - established extremist governance over large swathes of Syria and Iraq before its territorial defeat in 2019.
"This action shows British leadership, and resolve to stand shoulder to shoulder with allied nations, to eliminate any revival of Daesh and their dangerous and violent ideologies in the region," UK Defence Secretary the Defence Secretary stated.
RAF aircraft have carried out surveillance missions over Syrian airspace to "deter any attempted resurgence" of the group after its military defeat at the climactic battle in Baghuz in 2019, the ministry said.
"I extend gratitude to the personnel of our armed forces participating in this strike for their expertise and their courage," the Defence Secretary added. "They were part of numerous British troops on duty over the holidays. This operation, to eliminate dangerous terrorists who endanger our way of life, shows how our armed forces are ready to step up, all year round, protecting the UK at home and influential overseas."
In December, the US military conducted what it termed a "massive strike" on IS targets in Syria, subsequent to an attack killed two US servicemembers and a civilian interpreter in Palmyra.
The U.N. estimates Daesh still maintains between 5,000 and 7,000 militants in Syria and Iraq.
