Police in Northern Ireland have arrested a 25-year-old man in the Coalisland area of Co Tyrone and are questioning him in connection with the murders of two teenagers in Co Armagh five years ago.
Andrew Robb, aged 19, and 18-year-old David McIlwaine, both from Portadown, were stabbed to death in February 2000.
Their bodies were found on the Druminure Road outside Tandragee, a few hours after they had left a disco.
A 54-year-old man arrested by the PSNI on Saturday in connection with the double killing has been freed.
A report will be sent to the Northern Ireland Public Prosecution Service.
