A 15-year-old boy was chased during an attempted robbery in Thorpe St Andrew.
It happened around 8.50pm on Friday in Pound Lane, when the victim was approached by a male of around 16 or 17 and was asked for his phone.
He refused and ran off, and was chased for a short distance.
The phone was not stolen and the victim was not hurt.
Police say the robber was white, around 6ft tall, of medium build and wore a dark blue hooded jacket and skinny jeans.
Call police on 101.
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