Four men arrested following the armed robbery of a Felixstowe bookmaker’s shop will not be prosecuted, police have said.

The quartet were detained by officers August 29, the day after Ladbrokes in Grange Farm Avenue was held up at gunpoint at 9pm.

During the raid two men entered the bookmaker’s and one of them headed to the counter.

The man threatened a male member of staff with what appeared to be a handgun and demanded cash.

Several hundred pounds was handed over before the two men fled. No one was hurt.

Both of the men wore dark clothing and a black material over their faces, with one having a bandana around the bottom of his face and wearing a hat.

Police arrested four men – a 29-year-old, a 27-year-old and two 24-year-olds – in the Felixstowe area the following day.

They were taken to Martlesham police investigation centre and questioned by detectives before being released on bail until last week, pending further enquiries.

However Ryan Brunning, a spokesman for Suffolk Constabulary said there was insufficient evidence to charge the quartet and they have now been released from their bails.

Mr Brunning stressed the inquiry was still active and police would be pursuing other lines of inquiry.

Officers are continuing to ask anyone with information in relation to the incident to contact Suffolk Coastal CID by dialling Suffolk Police on 101, quoting crime number FE/15/1533.

Alternatively you can call Crimestoppers, anonymously if required, on 0800 555111.