A man has been arrested in connection with the murders of two teenagers in Co Armagh five years ago.
Andrew Robb, 19, and 18-year-old David McIlwaine, both of whom were from Portadown, were stabbed to death on 18 February 2000.
A 54-year-old man was arrested in Craigavon and is being held under the Terrorism Act.
The arrest follows a renewed police appeal and reconstruction on the BBC Crimewatch programme this week.
