A teenage girl who has been reported missing from Tewkesbury may have travelled to Peterborough, say Cambridgeshire Constabulary.
Police in Gloucestershire are appealing for information to help locate Summer - she went missing on Sunday August 4.
Officers are concerned for the welfare of the 15-year-old as she was last seen on Tewkesbury Road, Coombe Hill, at around 4.10pm that day.
Summer is described as being 5ft in height, of a small build and has straight shoulder length black hair. When last seen she was wearing all black clothing.
It is believed that Summer has travelled to Peterborough or Wimbledon and may now be in those areas.
Officers have been conducting enquiries to locate Summer and are now asking for information from the public.
Anyone with information on Summer's whereabouts is asked to call 101 quoting incident 289 of August 4. Dial 999 if you are with Summer at the time of calling.
You can also give information through the Missing People charity on 116 000 or you can find out more information through the charity's website www.missingpeople.org.uk
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