Banksy's Slave Labour mural auctioned in London
A Banksy artwork that went missing from a wall in north London and was then withdrawn from sale in the US is up for auction again.
The mural, called Slave Labour, disappeared from Wood Green in February and later appeared in a Miami auction.
After being withdrawn at the last minute, it has now been returned to the UK, where new bids are being accepted, with a starting price of £900,000.
Arts Editor Will Gompertz reports ahead of the UK auction.