A 54-year-old man has been arrested in Co Antrim in connection with a fatal bomb attack on a bar in Belfast more than 36 years ago.
Five people were killed and 60 others injured, when the device exploded at the Mountainview Tavern on the loyalist Shankill Road on 5 April 1975.
The investigation into the incident was re-opened following a review by the PSNI's Historical Enquiries Team.