RAF Typhoon jets have conducted a mission with French warplanes in a combined operation on an underground arms cache in Syria employed by the IS group, per a report from the UK's MoD.
The facility, pinpointed through surveillance, was thought to be housing weapons and explosive materials, the statement said, and was situated in mountains just north of the ancient city of Palmyra in the heart of Syria.
"Our fighter planes used laser-guided Paveway IV weapons to strike a several approach shafts providing entry to the depot... early reports are that the strike was effective," the ministry announced.
There was no indication of any civilian casualties in the operation on Saturday evening and all the aircraft returned to base without incident, the defence officials confirmed.
The Typhoon FGR4s were supported by a Voyager aerial refuelling aircraft.
IS - also known as ISIS - established jihadist rule over large swathes of both Syria and Iraq before its territorial defeat in 2019.
"This operation shows British leadership, and commitment to stand shoulder to shoulder with our partners, to eliminate any resurgence of the terrorist group and their harmful and extremist ideologies in the region," the British Defence Secretary the minister said.
British military aircraft have performed patrols over Syrian airspace to "prevent any efforts to regroup" of the group following its defeat at the battle of Baghuz in 2019, the MoD reported.
"I extend gratitude to all the members of British forces involved in this mission for their skill and their bravery," Healey commented. "Including them were thousands of British personnel on duty over Christmas and New Year. This action, to take out dangerous terrorists who endanger our way of life, shows how our armed forces are always on standby, all year round, keeping Britain secure within its borders and strong abroad."
In December, the United States armed forces conducted what it described as a "large-scale strike" targeting Islamic State objectives in Syria, subsequent to an assault resulted in the deaths of two US troops and a local interpreter in Palmyra.
The United Nations says Islamic State still has between 5,000 and 7,000 militants in both countries.
