RAF Typhoon jets have conducted a mission with French aircraft in a joint strike on an subterranean weapons facility in Syrian territory operated by the IS group, as stated by the British defence ministry.
The location, identified by intelligence, was believed to be containing munitions and bombs, the announcement noted, and was situated in mountainous terrain just to the north of Palmyra in the heart of Syria.
"Our fighter planes used laser-guided Paveway IV weapons to target a series of entry passages down to the facility... preliminary assessments are that the objective was successfully hit," the MoD said.
There was no sign of any civilian impact in the attack on Saturday evening and every plane involved made a safe return, the defence officials confirmed.
The Typhoon FGR4s were supported by a Voyager refuelling tanker.
The Islamic State group - alternatively referred to as Daesh - established jihadist rule over significant areas in both Syria and Iraq before its territorial defeat in 2019.
"This operation shows our UK leadership, and determination to work closely with allied nations, to eradicate any revival of Daesh and their dangerous and violent ideologies in the region," UK Defence Secretary John Healey stated.
UK warplanes have conducted surveillance missions over Syria to "forestall any attempted comeback" of the group after its defeat at the Baghuz confrontation in the year 2019, the MoD reported.
"I must thank every member of the UK armed forces who took part in this mission for their expertise and their valour," he said. "They were among a great many British personnel deployed over Christmas and New Year. This operation, to eliminate terrorist threats who pose a risk to our security, shows how our armed forces are always on standby, all year round, protecting the UK domestically and strong abroad."
In December, the American forces executed what it described as a "major assault" on IS targets in Syria, after an assault claimed the lives of two US servicemembers and a civilian interpreter in the Palmyra area.
The United Nations says Islamic State still has roughly 5-7 thousand militants in Syria and Iraq.
