Police are investigating a report of an alleged serious assault in Exeter and are appealing for any witnesses to come forward.
Officers were called to reports, at around 5.35pm on Wednesday 5 August, of a male who was said to be carrying a knife while running down Church Street, Exeter, and claiming to have seriously assaulted a person.
Enquiries are ongoing to establish the full circumstances of this incident.
A 17-year-old male from Topsham has been arrested on suspicion of wounding with intent, possessing a bladed article in a public place and theft.
If you witnessed the incident or have any information, mobile phone or dashcam footage that could help with enquiries, please contact them via their website here or by calling 101 quoting 50260207640.
Alternatively, independent charity Crimestoppers can be contacted anonymously online at Crimestoppers-uk.org or by calling freephone 0800 555111.

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