British Air Force Typhoon fighter aircraft have conducted a mission with French aircraft in a coordinated attack against an subterranean weapons facility in Syria employed by the Daesh militant organization, according to the UK's MoD.
The site, located using reconnaissance, was believed to be containing munitions and bombs, the statement said, and was located in mountains just above the ancient city of Palmyra in the heart of Syria.
"The RAF jets utilized Paveway IV guided bombs to hit a number of approach shafts down to the site... initial indications indicate the strike was effective," the MoD said.
There was no evidence of any harm to civilians in the operation conducted Saturday night and each participating jet returned to base without incident, the ministry further stated.
The Typhoon fighters were supported by a Voyager aerial refuelling aircraft.
Daesh - also known as Daesh - imposed extremist governance over large swathes of Syria and Iraq prior to its 2019 collapse.
"This action underscores British leadership, and determination to operate in unison with our partners, to stamp out any revival of the terrorist group and their violent and radical beliefs in the area," Britain's Defence Chief the Defence Secretary stated.
UK warplanes have carried out surveillance missions over Syria to "deter any attempted comeback" of IS after its routing at the Baghuz confrontation in 2019, the authorities noted.
"I want to thank every member of our armed forces who took part in this operation for their skill and their courage," Healey added. "They were among a great many UK service members on duty over the festive period. This operation, to take out terrorist threats who endanger our safety, shows how UK forces are always on standby, throughout the year, ensuring Britain's security domestically and strong abroad."
In December, the American forces executed what it termed a "large-scale strike" targeting Daesh sites in the country, subsequent to an assault resulted in the deaths of two US servicemembers and a civilian interpreter in the Palmyra area.
The United Nations reports Islamic State still maintains an estimated 5,000 to 7,000 militants in both countries.