The shocking moment a passenger headbutted a bus driver has been shown in CCTV footage.
Video of the unprovoked assault, which left the driver 46-year-old driver needing hospital treatment, was released today by the police in a bid to trace the attacker.
The passenger had earlier stumbled on the 119 bus it pulled away as he boarded.
He then got off the bus and caught another to the Colonnades leisure park in Waddon, where he attacked the driver, who was taking a break,
The driver was taken to hospital by ambulance for treatment to a cut to his forehead.
The passenger police want to speak to is white, aged between 40 and 50, wearing a flat cap and dark jacket.
Anyone with information can contact Detective Constable Daniel Kelly, of the Metropolitan Police's roads and transport police unit, on 07766 248282 or call Crimestoppers anonymously on 0800 555 111 quoting reference 163981.
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