A woman in her 90's has been taken to hospital following a fire in a room at Cornfield Care Centre on the Seacoast Road, Limavady.
Two appliances from Limavady were called to the incident shortly after 3am.
Causeway Coast Community understands the fire started as a result of an electrical fault.
A NIFRS spokesperson said, "The cause of the fire is believed to be accidental ignition."
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