An air ambulance attended the scene after a pedestrian was in collision with a car in Station Road, Kings Langley this morning (November 22).
At around 9.30am, the ambulance service was called to reports that a pedestrian had been involved in a collision with a Toyota Yaris.
One person has been taken to hospital with serious injuries.
Hertfordshire police officers attended to assist, and the road was closed temporarily to allow emergency services access.
The road has now been reopened.
More information to follow