There has been another arson attack at a former Quinn plant.
Just after 10pm last night, a generator was set alight near the building of the former Quinn Glass plant in Derrylin.
This is the fourth attack since December on the property empire once owned by Cavan businessman Sean Quinn.
No one is believed to have been injured during the incident. Police say entry was gained at the rear of the premises.
It is the latest in a spate of attacks on the Aventas Group.
In previous incidents an oil tanker was smashed into the doors of Aventas, a bus set alight, while hundreds of homes were left without phone or broadband services last month in a petrol bomb attack.
Sean Quinn has previously condemned the attacks saying those responsible were not acting in his name.