Police are continuing to investigate an assault at Simonside Hall in South Shields.
Armed officers were called to reports of a stabbing in the early hours of Saturday morning. A man and a woman were taken to hospital for treatment.
Officers are still looking for a man in connection with the incident.
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A man was threatened with a knife as he worked in a barber shop.
It comes after a weapon, known commonly as a BB gun was taken into a pub on Goodramgate in York on Friday 23, February.