A police chase involving a car being driven more than 100mph on the wrong side of the road finished in a crash that left four people in hospital.

At around 10.45pm yesterday (January 12), the Met Police were pursuing a “suspect vehicle” which was driven dangerously towards Watford.

It eventually collided with a car driven by a member of the public in St Albans Road at around 10.58pm, a police spokesperson said.

Watford Observer: There was a large police presence in St Albans Road, Watford, following the crash.There was a large police presence in St Albans Road, Watford, following the crash. (Image: Stephen Danzig)

Two people from the suspect vehicle were detained and taken to hospital, following which ammunition was found during a search of their vehicle. It is believed their injuries are not life-threatening, the Met said.

Two occupants of the other vehicle were taken to hospital with injuries that were later assessed as not life-threatening or life-changing.

Herts Fire and Rescue Service said it attended and helped release people from the vehicles, before leaving at around 12.40am.

Watford Observer: Emergency services after the two-car crash in St Albans Road, Watford.Emergency services after the two-car crash in St Albans Road, Watford. (Image: Stephen Danzig)

Road closures near the junction with Langley Road remained in place until around 8.30am.

An East of England Ambulance Service spokesperson said three ambulances, an ambulance officer and a rapid response vehicle were sent to the scene, before three patients were transported to Watford General Hospital.

The Met's Directorate of Professional Standards have been informed, as is protocol, the Met Police spokesperson said.