It follows an incident last weekend where a man suffered serious injuries.
Officers were called to reports of a stabbing just after 4am on Saturday 8th February outside a property in Dene Side.
A male in his 30s suffered serious chest and neck injuries but has since been released from hospital.
Police would now like to trace 45-year-old Svajunas Medelinskas from the Yarmouth area in connection with the incident.
If you can help, contact police on 101 quoting incident number 44 of 8th February.