A woman is “unconscious” in hospital after being run over by her partner, according to the victim's mother.

The victim, who has not yet been named, is being treated at St George's Hospital, after witnesses saw her partner "throw" her into his BMW before speeding off.

The victim and her partner, who are believed to live in the Carshalton near to where the shocking incident happened on Monday night in Beddington Lane, were seen arguing a few minutes earlier outside a BP garage.

After the man took the woman’s mobile phone she climbed onto the bonnet of the BMW saloon before the driver sped off at “top speed” with her hanging on for dear life, according to multiple witnesses.

Eyewitnesses at a nearby pub saw the driver “deliberately” swerve towards the woman and hit her.

The driver then got out of the car and threw her into the footwell before speeding off up the road, as onlookers pleaded with him to leave her alone.

A witness, who did not want to be named, said: “I have just spoken to the woman’s mother.

"She has just visited her daughter in hospital and wanted to speak to me to piece together what happened.

"She confirmed that the driver was the woman’s other half and that they are from Carshalton, just three miles away from where the incident happened.

"As soon as we saw what had happened we thought that it was a lovers’ tiff."

The man added: “Her mother said she is currently unconscious in hospital.

"That’s her little baby and she might not wake up, so there’s nothing she wants to add at this time.”

Dave Wightwick, the owner of the nearby Harvest Home pub, was one of the first people on the scene after the collision involving the pair who he said were aged between 25 and 40.

He called the police at 9.09pm straight after the man had driven off with his injured partner “slumped” in the footwell of his dark BMW saloon.

Scotland Yard said the woman is in a "non-life threatening" condition in hospital.