A man was arrested on suspicion of drink/drug driving and causing serious injury by dangerous driving between Potters Bar and Enfield.
Police were called at 10.53pm on Saturday July 17 to reports of a crash involving three cars in The Ridgeway (A1005).
A woman was taken to hospital with head injuries. Her condition is not-life threatening.
Two men were also taken to hospital for treatment for non-life-threatening injuries.
All cars stopped at the scene.
We are currently assisting at the scene of a serious collision on The Ridgeway A1005 near #PottersBar. There are road closures locally including at the Potters Bar Interchange #M25. These are expected to remain in place for some time. We are urging motorists to avoid the area.
— Herts Police (@HertsPolice) July 17, 2021
A Met Police spokesman said: "A 40-year-old man was arrested on suspicion of drink/drug driving and causing serious injury by dangerous driving.
"He was taken to hospital as a precaution and has now been released under investigation."
He said enquiries were ongoing.
Herts Police tweeted at the time: "We are currently assisting at the scene of a serious collision on The Ridgeway A1005 near #PottersBar.
"There are road closures locally including at the Potters Bar Interchange #M25.
"These are expected to remain in place for some time.
"We are urging motorists to avoid the area."
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