Royal Air Force Typhoon FGR4s have operated alongside France's air force in a coordinated attack targeting an subterranean weapons facility in Syrian territory employed by the IS group, per a report from the UK Ministry of Defence.
The site, identified by reconnaissance, was assessed as containing munitions and bombs, the announcement noted, and was located in hills just north of the ancient city of Palmyra in Syria's central region.
"The RAF jets used Paveway IV guided bombs to hit a number of approach shafts down to the depot... preliminary assessments are that the objective was successfully hit," the MoD said.
There was no sign of any harm to civilians in the attack on Saturday evening and each participating jet made a safe return, the MoD added.
The British jets were assisted by a Voyager aerial refuelling aircraft.
The Islamic State group - also known as Daesh - imposed jihadist rule over large swathes of Syria and Iraq before its territorial defeat in 2019.
"This action shows the UK's leading role, and resolve to operate in unison with our partners, to eliminate any re-emergence of the terrorist group and their violent and radical beliefs in the region," Britain's Defence Chief the minister stated.
UK warplanes have conducted patrols over Syria to "prevent any attempted resurgence" of Islamic State following its military defeat at the battle of Baghuz in 2019, the authorities noted.
"I must thank all the members of our armed forces participating in this operation for their professionalism and their valour," Healey added. "Including them were a great many British personnel on duty over the holidays. This action, to eliminate terrorist threats who pose a risk to our way of life, highlights how UK forces are always on standby, continuously, ensuring Britain's security domestically and powerful internationally."
During December, the American forces conducted what it called a "large-scale strike" on Islamic State objectives in the country, subsequent to an ambush claimed the lives of two US servicemembers and a civilian interpreter in the Palmyra area.
The United Nations estimates Daesh still boasts between 5,000 and 7,000 fighters in both countries.
