Complaints were made to the Environmental Protection Agency after untreated waste overflowed into nearby woodland over the weekend.

Ecologists say it could take at least three years before salmon and trout stocks return to an East Cork river after thousands of fish were killed last weekend.

Dairygold has admitted it may be responsible for a pollution incident that led to the death of hundreds, if not thousands of fish, on an East Cork river.

Anglers have expressed fears a river’s salmon and trout stocks will be wiped out by pollution which they claim is possibly emanating from a waste treatment plant and a speciality cheese factory.