Images of a man who may have witnessed a robbery in an Ipswich Tesco store have been released by police.

The robbery at the Tesco Express store in Nacton Road, in Ipswich, took place on Thursday, September 26.

Just before 8.50pm, a man entered the Tesco wearing a balaclava and reportedly showed shopworkers a large knife and a claw hammer, before asking them to open the till from which he stole a large amount of cash.

The suspect put the money in a Tesco bag for life and left on a bicycle, which was believed to be travelling in the direction of Clapgate Lane.

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No one was injured in the incident.

The suspect was described as being about 5ft 8ins in height, of stocky build and wearing a grey tracksuit.

Police believe the incident may be connected to the robbery at the Co-op in Ravenswood earlier that week on Monday, September 23.

The witness police wanted to speak to in connection with the robbery has now been identified.

Any witnesses, or anyone with information relating to these incidents is asked to contact Suffolk police, quoting crime reference number 37/54711/24.