A car involved in a hit-and-run in which an 11-year-old girl died was hired, detectives have revealed.

Sophie Brannan, her 10-year-old friend Chelsea Sommerville, and Chelsea's uncle Joseph Lloyd, 36, were hit by a black Vauxhall Astra that mounted the pavement in Maryhill, Glasgow, on Friday at around 7.40pm.

Both girls were taken to the Royal Hospital for Sick Children at Yorkhill in Glasgow where Sophie died yesterday. Chelsea is detained suffering from a fractured leg.

Joseph Lloyd was taken to the Western Infirmary and also remains detained suffering from a fracture to his shoulder.

Police are appealing for help to track down the driver of the Astra.

They say they know it was a hired car, but do not know if the person who hired the car was the one involved in the hit-and-run.

The vehicle involved was a black coloured Vauxhall Astra, '14' plate, 5 door.

It struck the pedestrians in Sandbank Street then made off into Maryhill Road then Lochburn Road where it collided with a Ford S-Max taxi.

The driver then left the car and ran of in Lochburn Road towards the canal.

The driver is described as a white man, aged 25 - 35, medium build with short shaven hair.

He was wearing a dark coloured jacket, dark jeans and white trainers.

Speaking today, Detective Superintendent Stevie Grant said: "The thoughts of the officers involved in the investigation and that of Police Scotland are with the family of Sophie Brannan, and the injured parties Chelsea Sommerville and her uncle Joseph Lloyd.

"So far, the response from the local community has been excellent however we need further information.

"I would appeal to anyone who saw the crash or the vehicle involved, either before or after the incident to come forward.

"People may not realise that a little bit of information could be vital to this investigation.

"It is imperative that we trace the person responsible. I would urge anyone who knows who this man is to get in touch.

"I would also appeal to him to do the right thing and come forward.

"We know that the car involved had been hired and we also know who had access to it.

"However, we cannot, at this time say that the person who hired it was the driver involved in the crash.

"We have yet to trace the person who hired this car and I would urge him to come forward and speak to police at the earliest opportunity."

Any person with information is asked to telephone the CID at Maryhill on the non emergency number 101. Alternatively telephone Crimestoppers on 0800 555 111 where anonymity can be maintained.