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Police arrest another man over murder of prison officer

Police investigating the murder of prison officer David Black have made another arrest.

The married father of two was gunned down in a high-speed motorway ambush last Thursday as he drove to work at Maghaberry prison in Co Antrim.

Yesterday Mr Black's family denounced his killers as cowards during his funeral in Cookstown, Co Tyrone.

A PSNI spokesman said: "Detectives investigating the murder of David Black on the M1 motorway on Thursday November 1 have arrested a 46-year-old man in the Lurgan area."

He has been taken to Antrim police station for questioning.

Three people, including one in the Republic, have already been arrested and released without charge in connection with the killing.