A woman has suffered serious head injuries after falling off the back of a new double-decker Routemaster bus.
The passenger was rushed to hospital after the incident at around 7.20am in Prince of Wales road in Kentish town.
According to the Evening Standard, the woman, who is said to be in her early thirties, fell head first from the bus platform.
She had been travelling on the No.24 route at the junction with Maiden Crescent.
Police are investigating the incident but said they were not treating it as suspicious.
Transport for London said it was carrying out a "thorough investigation" into the accident, the Mail Online reported.
Mike Weston, Transport For London's director of buses, said:"Our first concern is, of course, for the passenger and we can confirm the emergency services attended the scene. There will be a thorough investigation into this incident."
The new routemasters, which have been dubbed "Boris buses" have made headlines recently.
Last month one of the vehicles, which are worth £354,500 each, was involved in a six-car pileup in Chelsea, leaving three people in hospital. The incident happened on the bus' first day of service.
The buses have also suffered problems with airconditioning, while London Mayor Boris Johnson has been accused of "wasting" over £400,000 of public money on designing the new Routemaster buses.