Police investigating a robbery at a convenience store would like to speak to the people featured in these CCTV images.
The incident happened in Main Road, Gedling, at around 1.35pm on the afternoon of Tuesday 15 February, when the shopkeeper was threatened with a knife as he attempted to intervene in a theft.
Nothing was taken and the victim was unhurt.
Officers believe the people pictured in this image may have information that will help their investigation and are urging him to come forward.
Detective Constable Sean Parker, of Nottinghamshire Police, said: “This was a frightening incident for the victim and we are determined to track down whoever is responsible. These types of offences are taken extremely seriously by Nottinghamshire Police and we will always be very thoroughly investigated.
“We believe the people pictures in these images may have information that will help our enquiry and we urge them to come forward.”
If you recognise the people featured in these images please call 101 quoting incident 361 of 15 February.