Dramatic footage shows two men brawling between their heavy-duty vehicles on the hard shoulder of the M62 near Eccles, Manchester.
The pair were swapping details after their vehicles collided on the motorway when the tense exchange turned ugly.
It is unclear what triggered the row but the clip appears to show the truck driver in the hi-vis overalls attempting to grab a phone from the lorry driver’s hands.
The two-minute video shows the pick-up-truck driver reverse into the lorry, causing damage to the front of the haulage vehicle.
The raging truck driver then attempts to get into the cabin of the lorry, only to smash its window with a spade when the driver locks himself inside.
PC John Cavanagh, from GMP’s Roads Policing Unit, said: “This attack was unbelievable, and has been clearly captured on CCTV.