British Air Force Typhoon jets have joined forces with France's air force in a combined operation targeting an hidden munitions depot in Syria used by the IS group, per a report from the UK Ministry of Defence.
The facility, identified by surveillance, was believed to be housing weapons and explosive materials, the announcement noted, and was positioned in hills just above Palmyra in central Syria.
"The RAF jets employed precision-guided Paveway IV munitions to target a several access tunnels providing entry to the facility... initial indications are that the objective was successfully hit," the MoD said.
There was no sign of any civilian casualties in the operation on Saturday evening and every plane involved made a safe return, the ministry further stated.
The British jets were supported by a Voyager tanker plane.
The Islamic State group - also known as ISIS - enforced jihadist rule over significant areas in both Syria and Iraq before its territorial defeat in 2019.
"This operation demonstrates the UK's leading role, and commitment to stand shoulder to shoulder with allied nations, to eradicate any revival of IS and their dangerous and violent ideologies in the Middle East," UK Defence Secretary the minister said.
UK warplanes have carried out surveillance missions over Syrian airspace to "forestall any attempted resurgence" of the group following its defeat at the Baghuz confrontation in 2019, the authorities noted.
"I want to thank all the members of our armed forces who took part in this operation for their skill and their bravery," Healey added. "Including them were a great many UK service members on duty over the holidays. This mission, to remove terrorist threats who pose a risk to our way of life, demonstrates how UK forces are ready to step up, continuously, ensuring Britain's security domestically and influential overseas."
Last December, the US military executed what it called a "large-scale strike" against Daesh sites in Syria, following an attack killed two American soldiers and a local interpreter in the Palmyra area.
The United Nations says IS still has between 5,000 and 7,000 militants in Iraq and Syria.