A man arrested in Stockport is expected to be questioned in Northern Ireland over a decade-old murder of a pensioner.
In what was thought to be a random attack, Norman Moffatt, 73, was stabbed as he walked home after buying his morning newspaper in Coleraine, Londonderry, in January 2001.
Greater Manchester Police worked with the Police Service of Northern Ireland (PSNI), which led to the arrest of a 42-year-old man on suspicion of murder. He is to be taken back to County Antrim for questioning.
The attack was captured on CCTV, but police failed to find the killer at the time.
Following the stabbing, Mr Moffatt managed to make it home to his wife and children, though died two months later in hospital.