A Nottinghamshire road was closed overnight after an elderly woman was believed to have had a stroke before a three-car crash, police say.
Officers on patrol saw a car on the wrong side of Mansfield Road in Arnold at around 6.45pm on Saturday, December 5, as they were turning around, it had collided with two other vehicles.
The woman remains in hospital in a critical condition. There were no other reported injuries.
Nottinghamshire Police's serious collision investigation unit attended and the road was closed until 6am on Sunday morning to allow for the investigation.
Detective Constable Sarah Stables, said: "We have conducted thorough enquiries and believe the woman in her 70s sadly suffered a stroke.
"We're grateful that no one else was injured and that officers were instantly on the scene having seen the car being driven strangely.
"They were able to commence first aid until ambulance colleagues arrived and provide support to those involved.
"Our thoughts are with the woman and her family at this time."
