The Metropolitan Police is appealing for witnesses to two recent incidents that left cyclists fighting for their lives in hospital with serious injuries.

On Sunday, September 7, a 21-year-old male cyclist was involved in a collision with a bus on High Street at the junction with Richmond Road – also known as Richmond Rise.

Police and ambulance service arrived shortly after 8:45pm. The rider was taken to a central London hospital where a spokesman for the Metropolitan police said he currently remains in a critical condition.

The bus driver was not arrested and is helping officers with enquires.

In an earlier incident, a cyclist was involved in a collision with a car on Monday September 1 at Hyde Park Corner, junction with Constitutional Hill, SW1.

Police and ambulance service were called just after midnight to find the 31-year-old man suffering from serious head injuries.

He was taken by London Ambulance Service to a central London hospital where he remains in a serious but stable condition, over a week later.

The driver of the car stopped at the scene. No arrests have been made.

Both collisions are being investigated by officers from the  Serious Collision Investigation Unit at Merton. Anyone who witnessed either collision or the events leading up to them should call the unit on 0208 543 5157 or Crimestoppers anonymously on 0800 555111.