Four people who were being questioned in connection with the suspicious death of a 14-year-old boy on railway tracks have been released on bail.
A 15-year-old boy and three men were arrested as part of the investigation into Ryan Quinn's death.
The boy died after being hit by a train on Friday night near Portrush in Co Antrim.
Police are investigating reports that he was being chased shortly before his death.
RTE
