'Jackass' star Steve-O on suicide watch

Jackass daredevil Steve-O has been put on suicide watch, The Sun claims.

Steve-O, real name Stephen Glover, is alleged to have emailed suicide notes to friends.

Glover was taken to a California hospital for tests after a video of him playing Russian roulette was posted online.

The 33-year-old pointed a gun at the cameraman and asked: "Do you like my revolver? Do you like me pointing it at you?"

A source added: "Right now he's in extreme mania. He needs therapy."

Family and friends became increasingly concerned about Glover's mental health after he was arrested earlier in the month for making holes in his apartment wall and rowing with a neighbour.