Signalling problems at Berwick have been rectified.
Trains are now able to run between Edinburgh and Newcastle and onto Kings Cross but may be delayed by up to an hour.
More top news
Callum Young, who will now be 23, was last seen on August 27 last year at his home in Hylton Road.
Gunner Paul Ferguson was on leave from the Army when he died in the early hours of Sunday August 21.
Dutch International Darryl Janmaat left for Watford, USA's DeAndre Yedlin arrived from Spurs and Tim Krul left for a season's loan at Ajax.