Reports from Ukraine indicate that as many as 1,000 fighters remain inside the Azovstal steel factory - living in a labyrinth of deep tunnels initially designed as nuclear shelters.
Of those, at least three are former British soldiers with previous combat experience in Afghanistan. Two are former infantry corporals while the third is said to be a former combat medic.

BRITISH mercenaries are among the hundreds of soldiers trapped in the Ukrainian port city of Mariupol as they continue to mount a desperate last stand against Russian forces.
And Chechen troops, have been offered a financial bounty by Russian commanders to kill or capture any Briton who volunteered to fight, sources revealed last night. “They see Boris Johnson as the number one figure of hate and they are desperate to hit back at the UK for the help it has given to Ukraine.”



https://www.express.co.uk/news/world/1610554/ukraine-russia-war-mariupol-british-fighters-trapped-latest