Detectives are asking people to be on the lookout for a damaged Vauxhall Astra they believe was involved in a collision in Sheffield.
The car, thought to have been involved in a crash with a blue Ford Focus at the junction of Washington Road and Cemetery Road, Sharrow, will have damage to the rear.
Police officers alerted to the crash at 6.30pm on Friday, May 29 said there were reports of gunfire in the area at the time.
Nobody has come forward to report any injuries.
The Vauxhall Astra failed to stop after the smash and was seen travelling along Summerfield Street and turning left onto Ecclesall Road at the traffic lights, or just before onto Pomona Street.
The Focus was left abandoned at the scene of the collision.
Detective Sergeant Scott Harrison, leading the investigation, said: “I would ask anyone who believes there is car that matches this description on their street or in their area to call police.
“There will be significant damage to the rear end of this car due to the collision.
“If you are a mechanic or work in a car body shop and may have repaired, or had an enquiry for repairing a car like this over the last few days, I would also ask you to please make contact.
If you witnessed this incident or the direction of travel of the Astra, I would urge you to please get in touch as your information could prove vital to the investigation.”
Anyone with information should call South Yorkshire Police on 101 or Crimestoppers on 0800 555111.