British Air Force Typhoon FGR4s have operated alongside French warplanes in a combined operation on an subterranean weapons facility in Syrian territory employed by the Daesh militant organization, according to the UK's MoD.
The location, located using intelligence, was thought to be housing weapons and explosive materials, the announcement noted, and was positioned in mountainous terrain just above Palmyra in central Syria.
"Our aircraft employed Paveway IV guided bombs to strike a number of access tunnels down to the facility... initial indications suggest the strike was effective," the MoD said.
There was no indication of any harm to civilians in the operation on Saturday evening and every plane involved returned safely, the defence officials confirmed.
The British jets were backed up by a Voyager tanker plane.
IS - alternatively referred to as ISIS - imposed militant control over parts of both Syria and Iraq until 2019.
"This action underscores British leadership, and commitment to stand shoulder to shoulder with allied nations, to eliminate any revival of Daesh and their harmful and extremist ideologies in the region," Britain's Defence Chief John Healey stated.
British military aircraft have performed overwatch operations over Syria to "prevent any attempted resurgence" of the group subsequent to its routing at the battle of Baghuz in 2019, the MoD reported.
"I must thank all the members of British forces who took part in this strike for their skill and their courage," the Defence Secretary commented. "They were among numerous UK service members deployed over Christmas and New Year. This operation, to eliminate dangerous terrorists who threaten our safety, highlights how British military are always on standby, continuously, keeping Britain secure at home and powerful internationally."
In December, the American forces conducted what it called a "major assault" targeting Daesh sites in Syria, following an assault claimed the lives of two US troops and a civilian interpreter in the Palmyra area.
The U.N. says Islamic State still boasts roughly 5-7 thousand militants in Iraq and Syria.