A delivery driver has died after he was knocked down by thieves who stole his vehicle.
Police have now launched a murder investigation after the 53-year-old man was hit by his Mercedes while out making a delivery in Romiley, Stockport.
It is believed thieves stole the man's car shortly after 9pm on Friday 8 January, before knocking him down at the junction of Hazel Avenue and Lyme Grove as they drove away in it.
The man was taken to hospital in a critical condition but died on Sunday 10 January afternoon, a spokesman for Greater Manchester Police said.
Officers have arrested a 14-year-old boy on suspicion of robbery, who remains in custody.
This is an extremely tragic case which has rocked the community and left a family utterly devastated. We believe there may have been others involved in the incident and a number of lines of enquiry are continuing to be carried out in order for us to find those responsible.
Chief Inspector Liam Boden added detectives are continuing to look for the silver Mercedes.
He said: "We're still asking the public to come forward with any information that may assist us - even the smallest bit of information can prove vital.
"Anyone who may have seen a silver Mercedes in the area at the time or may have seen it in suspicious circumstances since is asked to get in touch - this vehicle could prove vital in our investigation.
"We're also keen for anyone with any CCTV or dash-cam footage to get in touch."