A dramatic video has emerged of a cyclist being hit by a car in Port Talbot, Wales, UK.

The footage, shot with a helmet mounted camera, captures the moment the driver hit the cyclist with their wing mirror, throwing him off his bike.

"As I was going round the roundabout a car was exiting the M4 motorway down the slip road," the cyclist wrote online.

"The driver failed to stop and give way at the roundabout and almost wiped me out."