Two men have been arrested over the death of a taxi driver in Sheffield.
Neighbours and passers-by tended to Mr Khan following the shooting
Younis Khan, 53, was shot as he drove along Scott Road, Pitsmoor, in the early hours of Wednesday.
South Yorkshire Police said the men, who are aged 23 and 27, were arrested in the Upperthorpe and Middlewood areas of the city on Thursday morning.
A post-mortem examination revealed Mr Khan died from a single gunshot to the chest, fired from a handgun. Police have increased patrols in Pitsmoor.
A help desk has also been set up for concerned cab drivers.
Mr Khan's Hackney cab crashed into two parked cars after he was shot.
It is believed he lost control of the vehicle because of his injuries.
Detectives have said there was no clear motive for the shooting.
After the arrests, Ch Supt Paul Broadbent said: "We've gathered a lot of information and have a number of leads to follow up, but we are still in the early stages of the inquiry.
"We are still appealing for anyone with information to please contact the incident room."
Mr Khan, of Abbeyfield Road, Sheffield, was married with three daughters and two sons.