British Air Force Typhoon FGR4s have operated alongside French warplanes in a joint strike targeting an hidden munitions depot in Syrian territory operated by the IS group, per a report from the British defence ministry.
The location, identified by surveillance, was believed to be housing weapons and explosive materials, the announcement noted, and was situated in mountainous terrain just to the north of Palmyra in the heart of Syria.
"Our aircraft used laser-guided Paveway IV weapons to hit a series of entry passages down to the depot... initial indications suggest the objective was successfully hit," the ministry announced.
There was no evidence of any civilian casualties in the attack late on Saturday and every plane involved returned safely, the MoD added.
The British jets were supported by a Voyager aerial refuelling aircraft.
The Islamic State group - also known as Daesh - established militant control over large swathes of Iraq and Syria prior to its 2019 collapse.
"This strike demonstrates our UK leadership, and determination to stand shoulder to shoulder with allied nations, to stamp out any re-emergence of the terrorist group and their violent and radical beliefs in the area," Britain's Defence Chief the minister stated.
British military aircraft have performed surveillance missions over Syria to "prevent any attempted comeback" of IS after its defeat at the climactic battle in Baghuz in 2019, the authorities noted.
"I extend gratitude to every member of our armed forces participating in this strike for their expertise and their valour," the Defence Secretary added. "They were part of numerous British personnel on duty over Christmas and New Year. This operation, to take out dangerous terrorists who endanger our safety, demonstrates how British military are always on standby, throughout the year, protecting the UK at home and powerful internationally."
Last December, the United States armed forces executed what it called a "large-scale strike" against IS targets in the country, after an assault resulted in the deaths of two US troops and a local interpreter in Palmyra.
The U.N. reports Daesh still maintains between 5,000 and 7,000 combatants in Iraq and Syria.