Man was treated in hospital for injuries.
Detectives arrested a 27-year-old woman on Sunday (December 22) after a man was stabbed in the Waterside area of the city.
The incident took place shortly before 1am at St Brecan's Park. The 22-year-old male victim sustained wounds to his shoulder and was treated in hospital. The injuries were not believed to be life-threatening.
Anyone who can assist the police investigation is asked to contact Strand Road CID on 101, quoting reference 115 22/12/19.
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