Banksy's art install outside the UK Intelligence HQ

Fans think Banksy's artwork mocking UK spies

A street artist Banksy is believed to be behind this artwork located on a street in Cheltenham, Gloucestershire, just a few miles from Government Communications Headquarters (GCHQ), where UK's surveillance network is based.

The artwork shows three security agents spying on a public phone, wearing brown trench coats and trilby hats.

Residents said they saw a group of men packing away a large white tarpaulin on Sunday, before driving off in a maintenance van. News of the artwork has attracted a number of visitors,many of whom believe the graffiti bears the hallmarks of the elusive street artist