RAF Typhoon jets have joined forces with French warplanes in a combined operation targeting an subterranean weapons facility in Syrian territory employed by the IS group, according to the British defence ministry.
The site, identified by intelligence, was assessed as containing munitions and bombs, the release indicated, and was positioned in hills just north of Palmyra in Syria's central region.
"Our aircraft used laser-guided Paveway IV weapons to target a series of entry passages down to the depot... preliminary assessments suggest the strike was effective," the ministry announced.
There was no evidence of any civilian casualties in the strike late on Saturday and every plane involved made a safe return, the ministry further stated.
The Typhoon fighters were backed up by a Voyager refuelling tanker.
The Islamic State group - referred to as the so-called Islamic State - enforced extremist governance over significant areas in both Syria and Iraq prior to its 2019 collapse.
"This operation underscores our UK leadership, and determination to work closely with allied nations, to stamp out any re-emergence of Daesh and their harmful and extremist ideologies in the Middle East," Britain's Defence Chief the Defence Secretary remarked.
RAF aircraft have performed overwatch operations over Syrian airspace to "forestall any attempted resurgence" of IS subsequent to its military defeat at the climactic battle in Baghuz in the year 2019, the authorities noted.
"I want to thank the personnel of British forces who took part in this operation for their expertise and their bravery," he added. "They were among a great many British personnel on duty over the festive period. This mission, to eliminate militants who threaten our safety, demonstrates how UK forces are prepared to act, throughout the year, keeping Britain secure at home and powerful internationally."
Last December, the United States armed forces conducted what it called a "major assault" against Daesh sites in Syria, subsequent to an assault killed two US troops and a civilian linguist in the Palmyra area.
The U.N. reports IS still maintains between 5,000 and 7,000 militants in both countries.
