The road remains closed (credit: @Essex_Travel)
A female cyclist was taken to hospital after being injured in the crash which also involved a lorry at around 6am this morning.
The rider, a 58-year-old suffered several serious injuries including fractures to her ribs, pelvis, and arm.
The lorry driver did not stop at the scene and was later arrested by police in Nestuda Way, near Southend Airport.
In a statement, Essex Police said: “The driver, a 60-year-old man from Dagenham, was arrested on suspicion of causing serious injury by dangerous driving and failing to stop after an accident. He remains in custody for questioning.
“A section of the Southend-bound A127 at Dunton remains closed.
“Road users who saw the collision or were travelling in the area at the time and have dashcam footage are asked to contact Chigwell Roads Policing Unit on 101 quoting incident 71 of today’s date.”
Witnesses can also report information on the Essex Police website.
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Tags: Dagenham, Barking and Dagenham, A127