A £5,000 reward is being offered for information about the violent robbery which has left a Cromer shopkeeper needing operations to rebuild his shattered face.

A £5,000 reward is being offered for information about the violent robbery which has left a Cromer shopkeeper needing operations to rebuild his shattered face.

Four men have been arrested following the brutal attack on 52-year-old Jonathan Dunn at the town's Local off licence last week.

But detectives are hoping the reward, announced today by Crimestoppers, will encourage local people to come forward and tell them who did it.

Det Insp Andy Guy who is leading the investigation said: “There will be people in the town who know who is responsible for this. We hope the £5,000 is an incentive for them to tell us what happened.”

He said people were shocked at the level of violence involved in the robbery at the off licence in Hamilton Road about 10pm on Tuesday March 6.

After several days in hospital Mr Dunn was discharged to continue recovering with relatives outside of Norfolk at the weekend.

But he will need to return to hospital for reconstructive surgery on a broken eye socket, nose, jaw and treatment for a detached retina.

“Most robberies involve the threat of violence without it ever being used, but here was a nice ordinary man going about his work, when two blokes laid into him without any demands for cash or threats,” said Det Insp Guy.

The arrests involved a 33-year-old Cromer man on Friday, followed by three more the following day - a 16-year-old and 25-year-old from Cromer and 19-year-old from Norwich. They have been freed on bail while police inquiries continue.

Det Insp Guy said the arrests were the result of information from the public and police work by a team of about a dozen officers from the local CID and county major investigation team. The reward was aimed at getting more information and evidence for the case.

Anyone with information should contact Crimestoppers anonymously on 0800 555 111, or North Walsham CID on 0845 456 4567.