British Air Force Typhoon fighter aircraft have conducted a mission with French aircraft in a joint strike targeting an hidden munitions depot in Syrian territory operated by the IS group, per a report from the British defence ministry.
The site, located using reconnaissance, was believed to be storing arms and explosives, the announcement noted, and was positioned in mountains just above Palmyra in central Syria.
"Our aircraft utilized Paveway IV guided bombs to strike a series of approach shafts down to the facility... early reports indicate the strike was effective," officials stated.
There was no sign of any civilian casualties in the strike on Saturday evening and all the aircraft returned to base without incident, the ministry further stated.
The British jets were backed up by a Voyager aerial refuelling aircraft.
The Islamic State group - referred to as ISIS - enforced jihadist rule over significant areas in both Syria and Iraq until 2019.
"This operation demonstrates British leadership, and determination to stand shoulder to shoulder with our partners, to eradicate any resurgence of IS and their dangerous and violent ideologies in the Middle East," Britain's Defence Chief the Defence Secretary said.
UK warplanes have conducted surveillance missions over Syria to "deter any attempted resurgence" of the group after its military defeat at the battle of Baghuz in 2019, the ministry said.
"I must thank the personnel of our armed forces involved in this operation for their expertise and their courage," he commented. "They were among thousands of British troops stationed over the holidays. This action, to take out terrorist threats who threaten our security, demonstrates how our armed forces are ready to step up, continuously, keeping Britain secure within its borders and strong abroad."
In December, the American forces carried out what it described as a "massive strike" targeting IS targets in Syria, subsequent to an assault killed two American soldiers and a local interpreter in the Palmyra area.
The UN estimates Islamic State still boasts an estimated 5,000 to 7,000 fighters in Iraq and Syria.
