Dozens of firefighters tackle blaze at empty building
Fire crews from more than half a dozen stations across Northern Ireland were called in to deal with a blaze at an empty building.
Fifty-two firefighters were involved in tackling the blaze in the unoccupied end-of-terrace property at Bath Terrace in Portrush, Co Antrim.
The alarm was raised at about 9pm on Sunday night, Northern Ireland Fire & Rescue Service said.
The fire was described as well developed with crews from Portrush supported by others from Coleraine, Portstewart, Ballymoney, Ballycastle, Ballymena, Northland and Strabane.
The fire was said to be under control after midnight but crews were expected to remain on scene for several hours to ensure it was fully extinguished.
Police said they are treating the blaze as suspicious.
The fire was reported to the PSNI at around 9.10pm on Sunday.
The PSNI said the Fire and Rescue Service now believe the fire may have been caused deliberately.
Detective Sergeant Wallace, from Reactive and Organised Crime, said: "The building will be entered and examined by PSNI crime scene investigators once building control officials have determined it is safe to do so.
"I would appeal to anyone with information about this crime to please contact police by calling 101 quoting reference number 1029 16/04/17."