A member of the UK armed forces has been killed in a road traffic incident in Ukraine, the Ministry of Defence has confirmed.
The person died on Saturday. The MoD said the incident was not the result of hostile action.
The individual's family has been informed and has requested time before further details are released. "Our thoughts and our sympathies are with the individual's loved ones at this difficult time," an MoD spokesperson said.
Defence Secretary Wes Streeting expressed his condolences on social media. "This is very sad news for the family and for those grieving with them in our Armed Forces. My deepest condolences go to them all," he wrote.
It is not known which service the individual belonged to or what their role was in Ukraine.
The British government has previously acknowledged that a small number of personnel are stationed in Ukraine to support Kyiv's armed forces and provide security to diplomatic staff.
The death is the second confirmed fatality of a UK armed forces member in Ukraine since Russia launched its full-scale invasion in 2022. British paratrooper George Hooley, 28, was killed in December while observing Ukrainian forces testing a new defensive capability away from the front lines. The MoD described his death as a "tragic accident".
Separately, on Sunday, a Russian drone struck and damaged a train at Yahodyn station, near the Ukraine-Poland border. The attack occurred shortly after a train carrying former British Prime Minister Boris Johnson and a number of European security officials had departed from the same line ahead of schedule.
Johnson had been returning from a major conference in Kyiv. Former Swedish Prime Minister Carl Bildt and several European security advisers were also on board his train. The UK's National Security Adviser, Jonathan Powell, was among those travelling on the diplomatic train.
No casualties were reported in the drone strike. Ukraine's state railway operator said in a post on Telegram that it was "quite possible" the drone had been aimed at the train carrying Johnson and the other dignitaries. Russia's defence ministry said it had struck "railway infrastructure" in western Ukraine.
The UK has been one of Ukraine's closest allies throughout the conflict. Prime Minister Andy Burnham visited Ukraine in August on his first overseas trip since taking office, meeting President Volodymyr Zelensky and pledging to maintain pressure on Russia despite what he described as Moscow's "outrageous threats".
Burnham also chaired his first meeting of the "coalition of the willing", a grouping established by the UK and France under his predecessor, Sir Keir Starmer. At the meeting, he agreed to hand over blueprints for British-made components for Scalp missiles.
