British Air Force Typhoon FGR4s have joined forces with French warplanes in a joint strike on an underground arms cache in Syrian territory employed by the Islamic State group (IS), per a report from the UK's MoD.
The location, located using reconnaissance, was thought to be containing munitions and bombs, the announcement noted, and was positioned in mountains just to the north of Palmyra in the heart of Syria.
"The RAF jets used Paveway IV guided bombs to strike a several approach shafts leading to the depot... initial indications are that the strike was effective," the MoD said.
There was no sign of any harm to civilians in the operation on Saturday evening and every plane involved made a safe return, the defence officials confirmed.
The British jets were supported by a Voyager aerial refuelling aircraft.
The Islamic State group - also known as Daesh - enforced extremist governance over parts of Syria and Iraq prior to its 2019 collapse.
"This action demonstrates our UK leadership, and commitment to operate in unison with allied nations, to stamp out any revival of IS and their harmful and extremist ideologies in the Middle East," the British Defence Secretary the Defence Secretary said.
UK warplanes have carried out patrols over Syria to "deter any efforts to regroup" of Islamic State subsequent to its routing at the battle of Baghuz in 2019, the ministry said.
"I must thank all the members of the UK armed forces participating in this mission for their skill and their bravery," he added. "They were among thousands of UK service members deployed over the festive period. This operation, to take out dangerous terrorists who threaten our safety, demonstrates how UK forces are prepared to act, throughout the year, protecting the UK within its borders and influential overseas."
In December, the American forces conducted what it termed a "large-scale strike" targeting IS targets in the country, after an attack resulted in the deaths of two US troops and a local interpreter in Palmyra.
The UN reports Islamic State still boasts roughly 5-7 thousand fighters in both countries.
