A fifteen-year-old girl is fighting for her life after a double-decker bus mounted a pavement in Croydon, crashing into a group of pedestrians.

The driver of the bus has been arrested on suspicion of drink driving and remains in custody at a south London police station.

The London Fire Brigade said the bus collided with a car, a single-decker bus, then crashed into a bus shelter by West Croydon bus station.

There were 20 people on the bus, 17 of whom were injured "to varying degrees", according to the fire service.

A spokesperson added that the two people in the car were suffering from shock.

The fifteen-year-old was seriously injured. She was treated at the scene and then taken to hospital.

A spokesperson for the London Ambulance Service said: "We have been treating nine patients following a bus collision on Station Road in West Croydon.

"One person is understood to have been seriously injured, but others are believed to be mainly more minor injuries."

A video, posted on social media, shows the bus at an angle, which suggests it came off the road before crashing into the bus stop.

Pictures show debris strewn across the street, and the smashed front of the bus.

A spokesperson for the Metropolitan Police said: "Police were called at approximately 12:20hrs on Sunday, 11 November to reports of the collision in Station Road, Croydon.

"At this early stage it is believed a route 198 double decker bus had been in collision with a car, another bus and a bus shelter at the location.

"Officers, London Ambulance Service and London's Air Ambulance all attended the scene.

"A girl, believed aged 15 and a passenger on the route 198 bus, was treated at the scene for injuries before being taken to a south London hospital. She remains there in a critical condition. Her next of kin have been informed.

"A number of other people were treated at the scene for minor injuries.

"A man - the driver of the bus - has been arrested on suspicion of drink driving and remains in custody at a south London police station.

"Enquiries into the circumstances remain ongoing by officers from Croydon