A man has been left in a ‘potentially serious condition’ after collapsing in London Colney this afternoon.

The 30-year-old fell to the ground at around 3.30pm near Five Acres.

It is currently not clear what caused the collapse but a spokesperson for the ambulance service said his condition could be “potentially serious”.

He was taken by land ambulance to Watford General Hospital but an air ambulance and rapid response car were also called to the scene.