As first reported by Forbes on Sept 5th, a video from the front lines seems to reveal a Ukrainian Challenger 2 engulfed in flames.
Video shows 'first British Challenger 2 tank destroyed' in Ukraine
Five Months Into the Fray, Ukraine's First Challenger 2 MBT Appears Destroyed - autoevolution
Second British-made Challenger 2 tank destroyed in Ukraine – RIA — RT Russia & Former Soviet Union
Russian army destroyed first UK Challenger 2 tank in Ukraine
How are the 14 Challenger 2 tanks doing in Ukraine? Battle tested, formidable but heavy and slow. Abrams and Leopards are talked up but not a single one (both gulf wars) has
M1A1 Abrams Tanks Spotted Near Ukranian Front Lines, Is the Jig Up For Russia? - autoevolution
Not Upgraded Since 20 Years, Outdated British Challenger-2 Tanks Arrive In Ukraine Only To Get A Brave Death - Russian Media
Ukraine: Video Seems to Show Destroyed Challenger-2 for First Time
British tanks damaged in Ukraine must be recovered to stop Putin getting top secret tech, Politics, News
British defense chief confirms Challenger 2 tank destroyed in Ukraine - World - TASS