Detectives investigating an attempted armed robbery in which a shopkeeper fought off a knifeman are appealing for a key witness to the crime to come forward.
Shortly before 6.30am on Thursday, September 27, police were called to Londis, in Lincoln Avenue, in the Silksworth area of Sunderland.
A man entered the shop wearing all black and with his face covered before he threatened shopkeeper Ken Khaira with a knife.
Ken had been opening up his store as usual when a masked man made his way around the counter and threatened him, demanding money.
CCTV video footage showed the shocking moment brave Ken refused to hand over cash.
The offender then fled in the direction of Westgate Avenue.
An investigation is underway as police look to identify the person responsible, who is described as white, aged in his 20s and wearing all black.
As part of ongoing enquiries, police have studied CCTV footage which shows a brief exchange of words between the suspect and the driver of a dark-coloured vehicle which drove down Lincoln Avenue shortly after the robbery.
Officers say they are now keen to trace the driver of the vehicle, who they hope may have key information that can help police with the investigation.
The witness, or anyone with information that could assist detectives with the investigation, is asked to contact 101 quoting log 160 270918 or Crimestoppers anonymously on 0800 555 111.