British Air Force Typhoon jets have operated alongside French warplanes in a combined operation against an underground arms cache in Syria used by the IS group, per a report from the UK Ministry of Defence.
The location, located using intelligence, was thought to be housing weapons and explosive materials, the announcement noted, and was positioned in hills just north of the historic site of Palmyra in the heart of Syria.
"Our aircraft utilized laser-guided Paveway IV weapons to hit a several approach shafts down to the depot... early reports indicate the target was engaged successfully," the MoD said.
There was no indication of any civilian casualties in the operation on Saturday evening and each participating jet returned to base without incident, the MoD added.
The Typhoon FGR4s were backed up by a Voyager aerial refuelling aircraft.
IS - also known as the so-called Islamic State - imposed militant control over parts of both Syria and Iraq prior to its 2019 collapse.
"This strike shows the UK's leading role, and determination to stand shoulder to shoulder with allied nations, to stamp out any revival of IS and their harmful and extremist ideologies in the region," the British Defence Secretary the minister remarked.
British military aircraft have performed patrols over Syrian airspace to "prevent any efforts to regroup" of Islamic State following its routing at the climactic battle in Baghuz in the year 2019, the MoD reported.
"I want to thank every member of the UK armed forces involved in this mission for their expertise and their valour," he commented. "Including them were thousands of British troops on duty over the holidays. This action, to take out militants who pose a risk to our security, demonstrates how UK forces are prepared to act, throughout the year, ensuring Britain's security at home and influential overseas."
In December, the United States armed forces conducted what it called a "major assault" targeting Islamic State objectives in Syria, following an assault killed two US troops and a civilian linguist in Palmyra.
The U.N. says Islamic State still boasts between 5,000 and 7,000 fighters in Syria and Iraq.
