Police are appealing for the driver of a vehicle which was involved in a collision last night to contact them.
Jasmyn Chan, 14, died after the crash on Normanton Road in Sheffield. A 12-year-old girl remains in hospital.
The driver of the car did not stop after the collision and police have appealed for them to come forward.
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Most escaping a frost overnight with cloudier skies and patchy rain. Turning colder on Monday stronger northerly winds, rain and hill snow.
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Flying Scotsman travelled alongside three modern trains to celebrate the "past, present and future" of Britain's railway this morning.