Police want to trace a black cab driver who allegedly caused injuries to a passenger at London Bridge by braking "excessively" before dragging the customer out the vehicle.
Scotland Yard is appealing for witnesses after a driver of a black Mercedes Vito Hackney Carriage is said to have assaulted a passenger who asked to be taken to Euston.
They also want to trace another occupant of the taxi.
Officers said CCTV footage filmed inside the car when it was on London Bridge, shows the driver brake “excessively” during the incident at about 1.15am on May 17, leaving the car's occupant injured.
In a statement, the Met said: “The taxi came to a stop on King William Street, where the driver exited his cab and walked around to the nearside rear passenger door and dragged the passenger out.
"The driver got back into his cab and was then approached by another man who asked to be taken to Euston.”
Police are looking to identify a man from CCTV footage.
PC Phil Hastings, who is investigating, said: “Although I have now made contact with the injured passenger, we still need to hear from anyone who witnessed the incident.
"I would also urge the driver and the second passenger, who approached the taxi after the assault, to come forward and speak with us. “
Any witnesses, or anyone with information that could identify the driver of the taxi is asked to call police on 101 or contact via Twitter @MetCC quote 2712802/19.