British Air Force Typhoon jets have operated alongside France's air force in a joint strike against an underground arms cache in Syria operated by the Daesh militant organization, per a report from the UK Ministry of Defence.
The site, located using reconnaissance, was believed to be storing arms and explosives, the statement said, and was situated in hills just to the north of Palmyra in the heart of Syria.
"Our fighter planes employed Paveway IV guided bombs to target a series of approach shafts down to the facility... preliminary assessments indicate the target was engaged successfully," the ministry announced.
There was no evidence of any harm to civilians in the attack conducted Saturday night and all the aircraft returned to base without incident, the defence officials confirmed.
The British jets were supported by a Voyager refuelling tanker.
The Islamic State group - referred to as ISIS - enforced jihadist rule over parts of Iraq and Syria prior to its 2019 collapse.
"This operation underscores our UK leadership, and determination to operate in unison with our partners, to stamp out any resurgence of the terrorist group and their dangerous and violent ideologies in the Middle East," Britain's Defence Chief the Defence Secretary said.
British military aircraft have performed overwatch operations over Syria to "forestall any attempted comeback" of the group following its military defeat at the climactic battle in Baghuz in the year 2019, the ministry said.
"I want to thank the personnel of the UK armed forces who took part in this mission for their expertise and their valour," the Defence Secretary commented. "They were among a great many British troops on duty over the festive period. This operation, to eliminate terrorist threats who endanger our way of life, shows how British military are prepared to act, continuously, protecting the UK domestically and influential overseas."
In December, the US military conducted what it described as a "major assault" targeting Islamic State objectives in Syria, subsequent to an assault claimed the lives of two US servicemembers and a local interpreter in the Palmyra area.
The United Nations reports Islamic State still boasts an estimated 5,000 to 7,000 fighters in Iraq and Syria.
