British Air Force Typhoon FGR4s have operated alongside France's air force in a coordinated attack on an subterranean weapons facility in Syria operated by the Islamic State group (IS), per a report from the British defence ministry.
The location, pinpointed through surveillance, was thought to be containing munitions and bombs, the release indicated, and was located in mountains just north of the historic site of Palmyra in the heart of Syria.
"The RAF jets employed laser-guided Paveway IV weapons to strike a several entry passages providing entry to the site... early reports indicate the strike was effective," the ministry announced.
There was no sign of any civilian casualties in the strike conducted Saturday night and all the aircraft returned to base without incident, the ministry further stated.
The Typhoon fighters were supported by a Voyager tanker plane.
IS - also known as ISIS - enforced militant control over large swathes of both Syria and Iraq before its territorial defeat in 2019.
"This operation underscores our UK leadership, and determination to work closely with our allies, to stamp out any revival of the terrorist group and their dangerous and violent ideologies in the Middle East," Britain's Defence Chief John Healey said.
UK warplanes have carried out surveillance missions over Syrian airspace to "prevent any attempted resurgence" of IS subsequent to its military defeat at the Baghuz confrontation in 2019, the authorities noted.
"I extend gratitude to every member of the UK armed forces involved in this strike for their professionalism and their courage," he added. "They were among a great many UK service members on duty over the festive period. This action, to eliminate militants who endanger our safety, demonstrates how British military are ready to step up, throughout the year, keeping Britain secure within its borders and strong abroad."
In December, the US military executed what it termed a "large-scale strike" against IS targets in Syria, after an assault resulted in the deaths of two US servicemembers and a civilian interpreter in the Palmyra area.
The U.N. says Islamic State still has an estimated 5,000 to 7,000 fighters in both countries.
