Police are investigating after one of their marked cars collided with a motorcyclist

The incident took place at the junction of Clapham Common Southside and Rookery Road at 7.20am yesterday.

The 50-year-old motorcyclist was taken to St George's Hospital with an ankle injury.

Witness, Craig Burnett, said: "The motorbike headed out up the side road.

"He got thrown into air. When I got a bit closer I saw him lying on the road."

A spokesman for the police said the incident was being investigated by the Metropolitan Police Traffic Incident.