British Air Force Typhoon jets have conducted a mission with French warplanes in a combined operation targeting an subterranean weapons facility in Syria used by the IS group, per a report from the UK's MoD.
The facility, pinpointed through reconnaissance, was believed to be housing weapons and explosive materials, the announcement noted, and was situated in mountainous terrain just north of the ancient city of Palmyra in the heart of Syria.
"Our fighter planes used Paveway IV guided bombs to strike a series of entry passages providing entry to the site... preliminary assessments indicate the objective was successfully hit," the MoD said.
There was no indication of any harm to civilians in the strike late on Saturday and every plane involved returned to base without incident, the MoD added.
The Typhoon fighters were backed up by a Voyager tanker plane.
Daesh - referred to as ISIS - enforced militant control over large swathes of Iraq and Syria before its territorial defeat in 2019.
"This action shows the UK's leading role, and determination to stand shoulder to shoulder with our allies, to stamp out any resurgence of Daesh and their harmful and extremist ideologies in the area," the British Defence Secretary the Defence Secretary remarked.
RAF aircraft have carried out overwatch operations over Syrian airspace to "forestall any attempted resurgence" of IS following its routing at the Baghuz confrontation in the year 2019, the authorities noted.
"I extend gratitude to all the members of British forces involved in this operation for their professionalism and their courage," the Defence Secretary commented. "They were part of a great many British troops stationed over Christmas and New Year. This mission, to remove terrorist threats who endanger our way of life, demonstrates how British military are prepared to act, continuously, ensuring Britain's security domestically and strong abroad."
During December, the US military carried out what it termed a "major assault" on IS targets in Syria, following an assault resulted in the deaths of two American soldiers and a civilian linguist in Palmyra.
The United Nations says IS still boasts roughly 5-7 thousand fighters in Iraq and Syria.