RAF Typhoon FGR4s have operated alongside French warplanes in a coordinated attack targeting an underground arms cache in Syria used by the Daesh militant organization, as stated by the UK's MoD.
The location, identified by surveillance, was thought to be housing weapons and explosive materials, the release indicated, and was located in mountains just to the north of Palmyra in Syria's central region.
"The RAF jets utilized Paveway IV guided bombs to strike a series of approach shafts down to the facility... initial indications are that the target was engaged successfully," the MoD said.
There was no indication of any civilian impact in the strike late on Saturday and every plane involved made a safe return, the MoD added.
The Typhoon FGR4s were assisted by a Voyager tanker plane.
The Islamic State group - also known as the so-called Islamic State - established jihadist rule over large swathes of both Syria and Iraq prior to its 2019 collapse.
"This strike shows British leadership, and resolve to operate in unison with our partners, to eliminate any resurgence of the terrorist group and their dangerous and violent ideologies in the area," UK Defence Secretary John Healey said.
British military aircraft have conducted overwatch operations over Syrian airspace to "prevent any attempted comeback" of IS following its routing at the Baghuz confrontation in 2019, the authorities noted.
"I want to thank the personnel of our armed forces involved in this mission for their professionalism and their courage," Healey commented. "Including them were a great many British troops deployed over the holidays. This mission, to take out terrorist threats who endanger our security, shows how UK forces are prepared to act, all year round, protecting the UK at home and influential overseas."
In December, the United States armed forces carried out what it termed a "massive strike" targeting Islamic State objectives in Syria, subsequent to an ambush resulted in the deaths of two US troops and a local interpreter in the Palmyra area.
The UN reports IS still has roughly 5-7 thousand militants in both countries.
