The National Parks and Wildlife Service (NPWS) of the Department of Arts, Heritage and the Gaeltacht and Inland Fisheries Ireland are investigating the cause of death of large numbers of dead freshwater crayfish, which have been found in the Bruskey/Erne River at Killydoon, near Ballinagh Co Cavan. The kill affected White-clawed Crayfish Austropotamobius pallipes along a short stretch of the Bruskey River where over 600 dead crayfish were found. Fish and other freshwater animals are not affected.