A woman is reported to have been sexually assaulted in Newcastle in the early hours of Sunday.
The fire has been contained and fire fighting operations will continue on Thursday.
Eight appliances and 46 firefighters are at the scene on Drinnahilly Mountain.
A 58-year-old man is accused of rape and his wife of aiding and abetting rape, among other charges.
The 68-year-old, from Newcastle, County Down, gave his 12-year-old victim whiskey before abusing him in 1991.