Much of the artist's work is seen on walls in streets around the UK In pictures: Banksy auction

The 10 pieces and a print were expected to raise a maximum of �300,000 in total when they were sold in London at auction house Bonhams.

However, the works actually fetched �546,000 altogether.

The piece which generated most money was Avon and Somerset Constabulary, which depicted two policemen looking through binoculars and fetched �96,000.

The next most expensive work, Attack of the Badly Drawn Boy, raised �78,000.

Untitled, Rat and Sword went for the third-highest price of �64,800.

Bonhams said it had been expecting "standing room only" for some items at the sale.

'Vandalism'

The collection under the hammer contained mostly spray-paint stencils, and the works were painted on canvas, board and metal.

As well as the 10 original works, the auction also included Di Faced Tenners, a screen print which consisted of a series of �10 notes where the Queen's head had been replaced by that of Diana, Princess of Wales.

This sold for �24,000.

The final prices include tax and the premiums paid to auction house Bonhams.