British Air Force Typhoon fighter aircraft have operated alongside French aircraft in a coordinated attack targeting an subterranean weapons facility in Syrian territory operated by the Islamic State group (IS), as stated by the UK's MoD.
The location, pinpointed through reconnaissance, was thought to be storing arms and explosives, the release indicated, and was located in mountainous terrain just to the north of the historic site of Palmyra in the heart of Syria.
"Our aircraft used Paveway IV guided bombs to hit a series of access tunnels leading to the site... preliminary assessments indicate the target was engaged successfully," the MoD said.
There was no indication of any civilian impact in the strike conducted Saturday night and each participating jet returned to base without incident, the defence officials confirmed.
The Typhoon fighters were backed up by a Voyager tanker plane.
Daesh - alternatively referred to as the so-called Islamic State - imposed extremist governance over large swathes of both Syria and Iraq until 2019.
"This strike demonstrates our UK leadership, and commitment to operate in unison with allied nations, to eradicate any re-emergence of the terrorist group and their harmful and extremist ideologies in the area," UK Defence Secretary John Healey said.
British military aircraft have performed surveillance missions over Syria to "forestall any attempted resurgence" of Islamic State after its defeat at the climactic battle in Baghuz in 2019, the ministry said.
"I extend gratitude to every member of our armed forces who took part in this strike for their expertise and their courage," the Defence Secretary commented. "They were among thousands of British troops deployed over Christmas and New Year. This mission, to remove dangerous terrorists who endanger our safety, highlights how British military are ready to step up, continuously, keeping Britain secure at home and strong abroad."
During December, the US military conducted what it described as a "massive strike" against Daesh sites in Syria, following an assault resulted in the deaths of two US servicemembers and a civilian interpreter in the Palmyra area.
The United Nations says Daesh still has an estimated 5,000 to 7,000 militants in Iraq and Syria.
