A man who claims to have defaced a valuable Mark Rothko work at the Tate Modern art gallery insists he is not a vandal.
Speaking to ITV News Vladimir Umanets said he was being "completely attacked" over the writing daubed on the Rothko mural which appears to read: "Vladimir Umanets, A Potential Piece of Yellowism."
Umanets said he knew the police would probably want to talk to him, but he hadn't spoken to them yet.
Umanets is one of the founders of "Yellowism", described as "neither art, nor anti-art".
Mr Umanets, who would not reveal his age or where he lives.
The Tate Modern does not have a price for the piece, but paintings by the Russian-born artist often fetch tens of millions of pounds.