A caravan has been “completely destroyed” after what the fire service believe was deliberate ignition overnight.
It happened in Millbrook Gardens in Castlederg shortly after 11pm.
Both the police and the fire service were called to the incident. No injuries were reported.
Inspector McDermott said: “It is fortunate no one was injured as a result of this arson.
“As we continue with enquiries, we’re appealing to anyone with information, or who was in the area at the time and saw any suspicious vehicles or activity, or anyone with footage that may assist our investigation, to get in touch.
“The number to call with information is 101, quoting reference 1895 of 31/07/24, or make a report online via psni.police.uk/makeareport. Information can also be provided to Crimestoppers anonymously on 0800 555 111 or online at crimestoppers-uk.org; always 999 in an emergency.”