A woman in her 80s has been flown to hospital after a crash involving a double decker bus, lorry and a Hyundai in Mersea Road, Colchester.
Police were called to reports of a serious collision shortly after 2.15pm today.
The injured woman, who was in the Hyundai, has been seriously hurt and was airlifted to hospital in London.
Earlier, Essex Police tweeted to say the road was closed to all traffic, including pedestrians, between Queen Elizabeth Way and Berechurch Hall Road.
Police re-opened the road several hours later at around 8pm.
The force's roads policing unit tweeted: "We are on scene at a serious collision on #MerseaRoad, Colchester.
"The road is currently closed to all traffic including foot traffic. Please avoid the area."
There were long delays in both directions and the road stayed closed during rush hour while crash investigators worked at the scene.
Witnesses to the collision and anyone with information should call 101 quoting incident 572 of Friday, January 31.
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