RAF Typhoon FGR4s have joined forces with French aircraft in a joint strike on an underground arms cache in Syria operated by the IS group, according to the UK Ministry of Defence.
The site, located using surveillance, was assessed as housing weapons and explosive materials, the announcement noted, and was located in mountainous terrain just north of the ancient city of Palmyra in central Syria.
"Our fighter planes utilized laser-guided Paveway IV weapons to strike a series of access tunnels providing entry to the site... preliminary assessments suggest the strike was effective," officials stated.
There was no indication of any harm to civilians in the attack conducted Saturday night and each participating jet returned to base without incident, the defence officials confirmed.
The British jets were backed up by a Voyager aerial refuelling aircraft.
Daesh - referred to as Daesh - enforced extremist governance over large swathes of both Syria and Iraq prior to its 2019 collapse.
"This operation demonstrates British leadership, and resolve to operate in unison with our partners, to eliminate any revival of Daesh and their harmful and extremist ideologies in the region," Britain's Defence Chief the minister stated.
RAF aircraft have carried out patrols over Syrian airspace to "forestall any efforts to regroup" of IS subsequent to its routing at the climactic battle in Baghuz in 2019, the MoD reported.
"I must thank all the members of our armed forces involved in this mission for their expertise and their valour," he commented. "Including them were numerous UK service members stationed over the holidays. This mission, to remove militants who endanger our way of life, shows how British military are prepared to act, continuously, protecting the UK domestically and strong abroad."
Last December, the United States armed forces conducted what it described as a "major assault" targeting Islamic State objectives in the country, following an assault killed two US servicemembers and a civilian interpreter in Palmyra.
The United Nations estimates Daesh still maintains roughly 5-7 thousand militants in Syria and Iraq.
