A teenage boy and two girls are wanted for questioning in relation to a theft from Tesco Wisbech earlier this month.
The incident, which happened on April 2, saw them enter the supermarket at around 9.30am.
It has been reported that the boy ripped off security tags from two phone cables and put them in his pocket.
A younger girl, who was being pushed in a trolley, also hid a speaker under her top before they made off without attempting to pay.
The cost of the stolen items is believed to be around £50.
The boy is thought to be in his late teens and is described as being of average height with short, dark hair, wearing black and white trainers, dark trousers and a light blue hooded top.
The girl, also thought to be in her late teens, is described as being of average height with long, light coloured hair, worn in a bun, wearing brown boots, pink patterned tights and a white dressing gown with red butterflies on.
The younger girl is described as having long dark hair and was wearing brown boots, dark blue leggings and a dark green jacket.
Anyone with information should call police on 101 or Crimestoppers, anonymously, on 0800 555 111.
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