Harrogate Police were called to Chatsworth Road in Harrogate at 9:30pm on 25 September 2015, following reports of a violent incident.
Two casualties were transferred to hospital as a result of the incident.
Police are appealing for witnesses and information on the incident. Please contact North Yorkshire Police on the non-emergency number 101.
See update 26 Septemeber 2015 at 19:30: Bladed weapon used in Harrogate assault