The actor Christopher Walken painted over a Banksy artwork for a new BBC TV show.
Banksy agreed to paint one of his signature rats on the set of "The Outlaws" in Bristol, and Walken then painted over it as part of the show, the BBC said.
A spokesperson for the show said: "We can confirm that the artwork at the end of The Outlaws was an original Banksy, and that Christopher Walken painted over that artwork during the filming of this scene, ultimately destroying it."
Characters in the show take part in community service, cleaning a building.
Walken's character is cleaning a wall when he spots the artwork, and his supervisor in the show doesn't look at what it is before agreeing that he should paint over it, the BBC said.
Banksy's identity remains unknown.