A 22-year-old Ipswich man is today in custody following an armed robbery at a supermarket petrol station.A balaclava-clad man threatened staff with a handgun at the Sainsbury's store in Warren Heath, Ipswich, around 8.

A 22-year-old Ipswich man is today in custody following an armed robbery at a supermarket petrol station.

A balaclava-clad man threatened staff with a handgun at the Sainsbury's store in Warren Heath, Ipswich, around 8.40pm last night and escaped with cash.

No one at the petrol station was able to talk about the raid today - and neither the police nor the company were prepared to say how much was taken.

The raider is believed to have made his way on foot to B&Q at Ransomes Europark, where it is thought he changed clothes.

A quantity of cash was left at B&Q and the offender was described as a white male, of stocky build, with a close shaven head and wearing a blue jacket and grey trousers.

Police launched a major search of the area, including deploying the force helicopter and dogs.

A man was arrested around 11pm in connection with incident and was being held at Felixstowe police station.

He was being interviewed but had not been charged as the Star went to press.

Police are appealing for witnesses to anyone acting suspiciously in the area.

Anyone with information, should call police on 01473 613500 or call Crimestoppers on 0800 555 111.