Police are investigating the robbery of a 16-year-old girl in Hilton.
The incident happened in Derby Road at 3.10pm on Wednesday as she walked home after taking an exam.
An old dark red or burgundy car pulled up beside her and one youth got out.
He threatened her and demanded property. She handed him a small amount of cash and he tried to grab her phone but was unsuccessful.The girl then ran home.
The youth who approached her is described as white, 19 or 20-years-old and about 6ft tall. He had dark brown hair with a greasy, sweeping fringe and a silver and crystal earring in one ear. He wore a burgundy polo shirt and grey jogging bottoms.
Detective Inspector Brian Bilby said: "While this appears to be an isolated incident we want to warn other pupils to be on their guard.
"During the exam season young people are more likely to be walking to or from school on their own and we want to make sure they are safe."
Anyone who has any information about the offence or recognises the description of the offence or the car should ring the police on 101 or call Crimestoppers anonymously on 0800 555 111.
