Video report by ITV News Correspondent Paul Davies
A furious cyclist wielding a huge 'zombie knife' smashed the window of a car in a terrifying confrontation on a busy south London street.
The 19-year-old driver of the Volkswagen Golf tried to escape but collided with another vehicle as he did so.
He eventually managed to run as the cyclist tried to force open the passenger door of the Golf.
The row appeared to start after the driver pulled out in front of the bike on the busy London Road in Croydon, causing the cyclist to swerve.
The suspect later left the scene and the victim returned, unharmed, to his car.
A spokesperson for the Metropolitan Police said: "Police were called on Wednesday, 30 May at around 17:00 hours to reports of males smashing a car window in London Road, Croydon."
"Officers attended and established that the driver of the car was approached by a male in possession of a knife who smashed his window.
"The victim, a 19-year-old man in an attempt to escape collided with another vehicle, exiting on foot.
"He was followed by the suspect.
"The victim later returned to his car after the suspect made off. Enquiries continue."