Have they found Banksy, or have they been prank-sied ... again?

A wary UK and US press have run stories suggesting that they have photographs of the infamous street artist Banksy, while carefully placing question marks at the end of almost every sentence for fear they could end up being the subject of another elaborate stunt.

Pictures purporting to be of Banksy were taken by members of the public on Saturday night when one of his installations went wrong.

Banksy is taking to the streets of New York this month, creating an open-air exhibition entitled Better Out Than In.