British Air Force Typhoon fighter aircraft have joined forces with French warplanes in a coordinated attack against an underground arms cache in Syrian territory used by the IS group, as stated by the British defence ministry.
The location, pinpointed through intelligence, was assessed as housing weapons and explosive materials, the announcement noted, and was situated in mountainous terrain just above Palmyra in the heart of Syria.
"The RAF jets employed Paveway IV guided bombs to strike a number of approach shafts down to the site... initial indications suggest the strike was effective," officials stated.
There was no sign of any harm to civilians in the operation on Saturday evening and every plane involved returned to base without incident, the defence officials confirmed.
The Typhoon fighters were supported by a Voyager aerial refuelling aircraft.
IS - referred to as Daesh - imposed jihadist rule over large swathes of Iraq and Syria until 2019.
"This strike underscores British leadership, and resolve to stand shoulder to shoulder with our partners, to stamp out any re-emergence of Daesh and their harmful and extremist ideologies in the region," UK Defence Secretary John Healey said.
RAF aircraft have performed surveillance missions over Syrian airspace to "prevent any efforts to regroup" of Islamic State after its military defeat at the Baghuz confrontation in 2019, the MoD reported.
"I must thank every member of our armed forces participating in this strike for their professionalism and their bravery," the Defence Secretary added. "Including them were numerous British troops stationed over the holidays. This mission, to remove militants who endanger our safety, shows how British military are prepared to act, throughout the year, ensuring Britain's security domestically and influential overseas."
During December, the American forces carried out what it described as a "massive strike" on Daesh sites in the country, subsequent to an assault claimed the lives of two US troops and a civilian linguist in the Palmyra area.
The United Nations reports Daesh still maintains between 5,000 and 7,000 combatants in Iraq and Syria.
