Fishery board inspectors have discounted farm effluent and regard chemical spillage as the cause.

One of Ireland's best known bridges was closed to traffic today amid fears of possible chemical spillage.

Streets around Queen's University in Belfast were sealed off last night after a chemical spillage in its medical and biology centre.

Thousands of fish have died in a suspected chemical spillage along a 10 mile stretch of the River Bann between Rathfriland and Banbridge, Co Down.