A man has been arrested in Antrim by detectives investigating the events of Bloody Sunday.
It is understood the 66-year-old is a former British soldier and is being interviewed at a police station in Belfast, having been arrested by detectives from the Legacy Investigation Branch.
The officer leading the investigation, Det Ch Insp Ian Harrison, said the arrest “marked a new phase in the overall investigation which would continue for some time”.
Thirteen people were killed when British paratroopers opened fire on a civil rights march through Derry city in January 1972. A fourteenth died later.