Media caption, > Anonymous artist uploaded video of destruction to Instagram but quickly deleted the post figcaption>
A woman who bought a Banksy painting for over £ 1million will keep the work, though she self-destructs after its auction.
A few moments after the sale of the Girl With Balloon framed by Sotheby 's in London, the canvas shredded.
Pest Control, a company acting on behalf of the elusive artist, titled the n ew piece Love is in the Bin.
Sotheby 's confirmed final price of £ 1,042,000 will be paid in full by the new owner.
The European woman who bought the piece, who does not want to be named, said: "At first I was shocked, but I realized that I would end up with my own piece of art history. "
Moments after the hammer fell at Friday's auction, alarms sounded and the canvas fell through a hidden shredder built into the bottom.
In an Instagram post, the street artist saidposted a photo of the moment, showing shocked phone buyers next to the web.
It is still unclear how the destroyer was activated.
In another Instagram post , Banksy explained why he built the frame.
The video showed someone in a hoodie installing the device, before another caption, saying: "In case it was up for auction.
Alex Branczik, Head of Contemporary Art at Sotheby 's, said the auction house was "happy to confirm the sale of artist ' s new title Loveis in the Bin, the first piece of art in history to be created live at an auction ".
Love is in the Bin will be on display to the public in the galleries of Sotheby 's New Bond Street this weekend.
The auction house did not reveal the identity of the new owner, saying only that she is a "long-time client of Sotheby 's ".