Police searching for offender after mobile speed camera damaged in regional Victoria

Investigations are ongoing after a man allegedly damaged a mobile speed camera in regional Victoria.

Police say the man approached a speed camera car vehicle which was set up and operating on Murradoc Road in St Leonards, near Geelong.

The incident happened at about 3.50pm on April 25.

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Police say the offender approached the vehicle from the nearby bushes before placing two boards with nails on each side of the front tyre.

"It's believed the man then allegedly used a long metal rod to smash the wing mirror before moving to the off-side of the vehicle and smash of the other wing mirror and antenna along with damaging the driver's side door," police said in a statement.

The man fled on foot towards St Leonards after the camera operator activated her personal alarm.

Police described the man who they wish to speak to as being in his 20s, Caucasian, around 175 cm tall and skinny.