A car pile-up on the A41 at rush hour left three people hospitalised this morning.
The East of England Ambulance Service were called to the incident on the southbound carriageway away from Hemel Hempstead towards the M25, shortly after 8am.
Three ambulance crews and a rapid response car attended the scene, before the service alerted police to help clear the scene.
The collision involved a white Suzuki Alto and green Nissan Micra, which both had to be recovered. A third car, a Mercedes Sprinter van, did not need recovery, but the ambulance service reported more cars had been involved, describing it as a six-car collision.
Police closed the road from Two Waters but had reopened one lane by 8.50am, and the road was cleared by 9.30am.
Duty ambulance officer Tabatha Saunders said: “Three patients received slight injuries and they were all taken to Watford General Hospital for further care.”