Veteran entertainer Christopher Biggins has said he feels "violated" after a cyclist snatched his phone as he waited for a taxi.
The I'm A Celebrity winner said the incident happened after he left a swanky restaurant in London's Covent Garden on Wednesday night.
The 70-year-old told BBC Wiltshire: "I had a terrible thing happen to me...
"I was at a very fashionable restaurant ... in Covent Garden. And I'd finished dinner and I'd walked down to Charing Cross Road. I was calling an Uber. It was quarter to midnight and I was on my phone.
"I was looking down towards Trafalgar Square and I was seeing where he was, how far away, and suddenly a hooded cyclist came by and stole my phone - just took it out of my hand.
"The terrifying thing is now, in London, there are so many stabbings, so many thefts. Apparently this happens all the time but it was such a violation.
"I shouted very loudly because I have a very loud voice. But it was quarter to midnight and no one was around really. So he got away."
The star said when he talked insurers and phone company staff the next day, some asked "'Is that the real Mr Biggins?', so I said 'Yes, it is' which made it slightly better."
Asked whether thieves could access his celebrity contacts, Biggins, who took over the BBC station as guest editor yesterday, said: "It's a facial recognition one, so they can't get in, and I stopped it immediately when I got home that night."
Last year, DJ Tony Blackburn revealed that he had fought off muggers and was kicked in the head in a "horrible" ordeal in London.
The veteran broadcaster (76) said the incident had occurred about three years previously.
"I was attacked by three people, knocked to the ground, kicked in the head," he wrote on Twitter.
He spoke after Good Morning Britain host Susanna Reid revealed chasing a knife-wielding man who tried to mug her. She "acted on instinct" and saw a "red mist" during the pursuit.