David BaleA shop owner who was threatened with a knife in a robbery told today how he could quit the business because of the attack.David Bale

A shop owner who was threatened with a knife in a robbery told today how he could quit the business because of the attack.

Mehmet Sert , who has run Norwich Mini Market, in St Stephen's Road, for only seven months, was not injured in the attack, but he said he was considering changing businesses.

He was working at the shop, close to Norwich city centre, at about 10pm on Monday, February 15, when a 'hoodie' walked into the store.

Mr Sert said: 'He asked for a bottle of vodka. He then grabbed the bottle and when asked for payment he threatened me with a really big kitchen knife.

'I had all the bottles of drink stacked up behind me in the counter so I could have hit him with one of those, and I was not that worried. It might have been different if it had been a gun rather than a knife.

'But my wife was also in the store at the time and she was scared.

'I have never been robbed before, but it could be too risky running the business now. Maybe I could run a fish and chip shop.

'There's also quite a bit of competition from supermarkets in the area, so maybe I could change jobs.'

He said the thief, who left the store with the bottle of vodka, had been captured on CCTV security camera, and that the police have taken the footage to study.

The thief was white, 5ft 8ins tall, of slim build, and in his early 40s. He was wearing a black zip-up jacket with a hood.

Details of the Norwich case emerged as a shopkeeper was killed in a robbery at his store in Huddersfield, West Yorkshire.

Gurmail Singh, 63, died in hospital after suffering a head injury during the attack on Saturday evening.

Four men in their late teens are being sought in connection with his death.

Anyone with information about the robbery at Norwich Mini Market should contact DC David Walker at Bethel Street police station on 0845 456 4567 or call Crimestoppers on 0800 555 111.

Have you been the victim of an armed robbery? Call reporter David Bale on 01603 772427 or email david.bale2@archant.co.uk