A PROLIFIC vandal has caused more than £1m worth of criminal damage across London by 'tagging' areas with graffiti.
The graffiti artist, who has sprayed the word Zerx, onto schools, houses, historical buildings and railway sidings is being sought by police.
Police have released pictures of the damage, which is seen extensively around Brent and Harrow but also appeared on the Admiralty building in Whitehall after the student demos in central London last December.
A Brent Council spokesman said: "Brent Integrated Community Safety Team has been working closely with British Transport Police and Queens Park Safer Neighbourhoods Team to share information around Zerx and has recently provided the transport police with supporting evidence. Brent Graffiti Partnership Board is coordinated by officers from Brent Council and Brent Police."
Harrow council spends £140,000 a year on removing graffiti.
The 21-year-old who has been arrested is from the Brent area, but no further details have been released.
Detective Inspector Paul Armstrong of the Specialist Crime Directorate said: "Using this type of graffiti not only looks very unsightly but can also cost councils, London Underground and members of the public a considerable amount of money to remove."
Anyone with information is asked to call police on 020 8246 0050 or Crimestoppers anonymously on 0800 555 111.
A 21-year-old man from Brent was arrested in January in connection with the investigation, but was bailed.