A bizarre protest against BP sponsorship at the British Museum used theatre, sea shanties and 'mermaids' to 'summon a Kraken'.
More than 200 people launched the 'splash mob' mass performance inside the British Museum's Great Court.
The protest group - called BP or not BP? - said it was in response to oil firm BP's "controversial" sponsorship of the museum’s current ‘Sunken Cities’ exhibition.
They say they are fighting a "theatrical battle between BP and the ocean" using musical mermaids, and hundreds of performers singing anti-BP sea shanties.