Post-mortem after Portrush death
A post-mortem examination has taken place on the body of a man who died after falling down stairs in Portrush.
Colin McLeister, 48, from Coleraine, died at the Playhouse entertainment complex in the early hours of Saturday morning.
Police are investigating the circumstances surrounding the father of three's death. They are studying the results of the post-mortem.
A 34-year-old man arrested on Saturday is still being questioned.
Police have asked anyone who saw an altercation on the first floor of the venue at 00:50 GMT to contact them.
PSNI Detective Chief Inspector Ian Magee said:"This investigation is very much in its early stages, we are trying to ascertain exactly what happened and that is why I need these people to think about what they saw whenever they were in the Playhouse.
"Did they see Colin McLeister? Did they see him before he went down the stairs at ten to one in the morning? If they did, please contact us."