An elderly woman was taken to hospital after an accident with a motorbike in Kings Langley this afternoon.
Hertfordshire Constabulary were called to the High Street at 12.44pm following reports that a pedestrian and motorcyclist had been injured.
Jason Fidler, eyewitness, said: "I heard the brakes screeching and a loud crash.
"I looked out the window and saw the bike spinning on the road."
Ambulance attended the scene and the road was closed.
Other witnesses described seeing a woman who stepped in to help the injured pedestrian.
Dave Upton, who saw the woman, said: "There was a nurse walking down the road at the time. She attended to the woman while they were waiting for paramedics to arrive."
Terry Fidler added: "I heard the crash and came out and saw the lady lying on her back. She was unconcious and a district nurse was passing by. She came across and made the woman comfortable."
It later transpired that the woman was not a nurse, but an employee of a nearby beauty salon.
The female pedestrian was taken to Watford General Hospital and the driver of the motorbike also sustained injuries.