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Blue Skies School is taped off after the incident
Police have begun an investigation into a serious sexual assault in Medway.
The incident took place at around 1am on Sunday in the New Road area of Rochester.
The victim is a woman in her 20s.
Police sealed off an area next to New Road, Chatham on Sunday afternoon after what was initially said to be a robbery.
Two officers stood guard near the Blue Skies School, a centre for children with special education needs. Cranborne Bowling Club and Fort Pitt Gardens are also nearby.
Anyone with information is asked to contact the Incident Room on 01634 884011 or Crimestoppers on 0800 555111.