A SECURITY dog unit car is still guarding the Banksy-style graffiti.

The vehicle was parked in front of the artwork on Eastcott Road with a man sat inside this afternoon.

It is not the first time a security car is seen protecting the controversial image of a boy holding a sign that reads "Wild £ man on the run. Heading for Bristol. Dodge News."

Only two days after it appeared on the wall of the abandoned Stagecoach bus depot building, vandals sprayed over the mysterious artwork.

READ MORE: 'Banksy' artwork in Swindon vandalised after just two days