Police are appealing for information about a fire at a listed building on the outskirts of Derry.
Shortly after 5pm on Saturday, fire crews turned out to a blaze at Balloughry Road.
Inspector Audrey Irvine said the house is a listed building, but has been unoccupied for some time.
The fire service believes the blaze was started maliciously.
Information can be given on the police non-emergency number, 101, or by calling the Crimestoppers Charity anonymously on 0800 555 111.
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