Anti-graffiti varnish will be coated on the walls of the station

Giant white letters and shapes have been daubed on a wall and footbridge at London Bridge Station.

Parts of the station, in particular platform eight, will be closed while scaffolding is put up.

Network Rail said vandals had gone to "extreme" lengths by crossing electrified tracks.

'Anti-social crime'

Dave Ward from Network Rail said: "Graffiti is an anti-social crime, which affects us all.

"Unfortunately it is often left to the railways to pay for the damage.

"Network Rail and station staff will be proactively working with the British Transport Police to apprehend and prosecute vandals and trespassers."