Two men riding a scooter robbed a man by threatening him with what is thought to be a hammer.
Detectives are appealing for witnesses of the incident, which happened on Wednesday, April 11 shortly before 8pm.
The victim, a man in his 20s, was walking through Eaton Park from the car park at the UEA towards the pavilion.
He was approached by two men riding a grey or silver coloured scooter who threatened him with what is thought to be a hammer before making off with his rucksack.
The victim was uninjured.
One of the suspects is described as being white, aged in his early 20s, and wearing a tracksuit and woolly hat or balaclava.
Anyone who may have witnessed the incident or has information concerning the suspects can contact Detective Constable Robin French at Norwich CID on 101 or call Crimestoppers anonymously on 0800 555 111.
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