Police investigating a knife-point robbery at Norfolk Heritage Park are appealing for witnesses or information.

The incident occurred at 9.50pm on Thursday June 11, 2009 near the City Road/Granville Road park entrance.

The 23-year-old man and his female friend were walking through the park when he was approached by a man with what is believed to have been a stanley knife.

Cash and a wallet were stolen but no one was hurt.

The male suspect is either black or mixed race, 6ft, of slim build and aged 18 to 22-years-old. He was wearing a blue hooded top with white stitching, dark tracksuit bottoms, white trainers, a dark-coloured baseball cap and a scarf covering his mouth.

Police are particularly interested in tracing a couple who were nearby when the robbery occurred.

Anyone with information should call DC 3683 Katie Lawrence at Moss Way Priority Crime Unit on 01142 2963525 or Crimestoppers anonymously on 0800 555 111.