A wind farm formerly owned by Seán Quinn's family has been targeted by arsonists in Co Fermanagh.
Police said an electrical substation at the property on Ballyconnell Road in Derrylin was set alight yesterday evening.
No one was injured but the fire caused substantial damage.
The wind farm is one of a number of businesses in the area once run by the Quinn family that were placed into administration after Quinn went bust.
A PSNI spokeswoman said: "At this stage, police believe the fire was started deliberately."
Police want to hear from anyone who was in the area at the time or anyone who has any other information that could assist the investigation.