Three pieces of modern art have gone missing from a gallery in Bath. Police believe the sculpture and two paintings were stolen from the Edgar Modern Gallery in Bartlett Street.
It's not known exactly when they disappeared but it's thought to have been between the first and 26th of September.
Detectives are asking anyone with information about the missing art to get in touch.
Fine Art Auctions Miami, the company that is set to sell the 'Banksy' artwork, is promoting the stencil as a highlight of tomorrow's auction.
They have put it on the front cover of the catalogue and on the home page of their website.
It is estimated that the work will fetch between $500,000 and $700,000.
An auctioneer in Miami preparing to sell a 'Bansky' street painting taken from a London wall says if anyone can prove the sale is illegal he'll take it off the market.
The 'Banksy' disappeared from a wall in Wood Green earlier this month, and is expected to fetch up to half a million dollars in the sale tomorrow.
Ria Chaterjee has our report: