Detectives investigating two robberies at shops in the Mansfield area committed in the past two weeks have issued CCTV footage following a third offence.
The latest incident occurred at the Shell service station in Leeming Lane South at around 10.30pm on Monday, July 20.
A male, around 6ft tall and with a local accent, dressed in dark clothing and a face covering, approached the cashier and produced a knife, demanding that she hand over money to him.
Once given the cash, the offender left on foot in the direction of Mansfield.
The cashier was uninjured.
Police believe it is the same man responsible for carrying out two recent robberies.
Last week, a reward of up to £1,000 was offered for information leading to the arrest and conviction of the offender who carried out similar robberies at the One Stop shop in Woodhouse Road at around 10.40pm on Wednesday, July 8 and then at the Sainsbury’s store in Westfield Lane at around 10.30pm on Sunday, July 12.
Footage of all three incidents (973 of 20 July, 900 of 8 July and 903 of 12 July) have also been released in order to help detect those incidents.
Anyone with any information about those or the incident on Monday 20 July (incident 973) should telephone Nottinghamshire Police on 101.
Alternatively they can call Crimestoppers anonymously on 0800 555 111.