A third case of bird flu has been confirmed in a wild bird in Ireland.

It was identified in a whooper swan that was found in Borrisokane in Co Tipperary.

It follows a separate discovery of the avian influenza virus in a wild bird in both Co Galway and Co Wexford in the past few weeks.

Last month, the Department of Agriculture activated regulations requiring all poultry and captive birds to be kept within a secure building amid concerns over bird flu.

As a result, all birds at Dublin Zoo were moved indoors for the foreseeable future due to the threat.

Nearly 150 ostriches, penguins, flamingos and other birds have been moved to a "back house" zoo facility.

The public is being advised not to handle dead or sick birds.

No outbreaks have been detected in poultry in Ireland so far.