A fourth outbreak of bird flu in a commercial turkey flock has been confirmed by the Department of Agriculture.

The farm near Ballybrittas, Co Laois, is believed to have up to 30,000 turkeys.

Restrictions, including a 3km protection zone and a 10km surveillance zone, have been put in place.

Agriculture minister Martin Heydon said: “Unfortunately, another outbreak of avian influenza has occurred, this time in a turkey flock in Co Laois, detected on November 21.

“First and foremost, I want to express my sympathy with the flock owner concerned, and with the other flock owners who have been impacted by outbreaks in recent weeks in Co Monaghan, Meath, and Carlow, as well as staff in Fota Wildlife Park in Cork.

“This is a dynamic and evolving situation, particularly during the high-risk period for avian influenza. My department has moved swiftly to implement disease control measures in line with national and EU legislation.”