British Air Force Typhoon jets have operated alongside French aircraft in a combined operation on an subterranean weapons facility in Syrian territory used by the Islamic State group (IS), as stated by the UK's MoD.
The location, located using reconnaissance, was believed to be storing arms and explosives, the statement said, and was positioned in mountains just to the north of the historic site of Palmyra in the heart of Syria.
"The RAF jets employed precision-guided Paveway IV munitions to hit a number of entry passages down to the depot... preliminary assessments are that the target was engaged successfully," officials stated.
There was no sign of any civilian casualties in the operation on Saturday evening and each participating jet returned safely, the MoD added.
The British jets were backed up by a Voyager tanker plane.
Daesh - referred to as the so-called Islamic State - enforced jihadist rule over parts of Syria and Iraq until 2019.
"This strike demonstrates British leadership, and resolve to operate in unison with allied nations, to eradicate any resurgence of Daesh and their dangerous and violent ideologies in the area," UK Defence Secretary the Defence Secretary stated.
RAF aircraft have performed surveillance missions over Syria to "forestall any attempted comeback" of the group after its military defeat at the battle of 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 bravery," Healey commented. "They were part of a great many British personnel deployed over the festive period. This mission, to take out dangerous terrorists who pose a risk to our safety, demonstrates how British military are prepared to act, throughout the year, keeping Britain secure at home and powerful internationally."
In December, the US military executed what it described as a "major assault" on Islamic State objectives in the country, subsequent to an ambush killed two US servicemembers and a civilian interpreter in the Palmyra area.
The United Nations says IS still boasts an estimated 5,000 to 7,000 militants in both countries.