09/29/2008 AT 08:30 AM EDT
Jack Osbourne – son of Ozzy and Sharon and brother of Kelly – chased a mugger down the road after watching him snatch a woman's bag.
Osbourne, 22, was with a friend at a coffee shop in London's Marylebone neighborhood when he witnessed the incident. Police say five people were involved in catching the mugger, including the former reality TV star, his friend and a paramedic who happened to be in the shop. The five pinned down the mugger until police arrived on the scene.
Osbourne told Britain's News of the World: "I could see the girl was in trouble. It just felt like the natural thing to do. I'm glad it turned out okay."
– Courtney Rubin