The Northern Ireland Fire and Rescue Service (NIFRS) says it's currently at the scene of a fire at the Dunluce Centre in Portrush.
A total of 46 firefighters are on site to tackle the blaze.
Crews were alerted to the fire at 8:26pm on Monday.
Six fire appliances have been dispatched; two from Portrush, two from Coleraine, one from Portstewart and one from Ballymoney.
An aerial appliance and support vehicle are also being used.
A spokesperson for NIFRS said: "The incident is ongoing, and we would ask members of the public to stay away from the area whilst Firefighting operations continue."