Rubbish bin and rocks used in attack on mobile speed camera in Melbourne that injured operator

Police say group jumped on the car in Coburg and shattered windows in what union calls horrific planned assault'

A mobile speed camera operator has been injured after his car was attacked by five men in a Melbourne street.

The blue SUV, fixed with traffic cameras in its rear window, was operating on Nicholson Street at Coburg in the early hours of Friday morning when it was attacked.