More than 20,000 fish killed after river polluted BBCProsecution possible after 20,000 fish die in Louth river RTE.ieOver 20,000 fish thought dead in ‘significant kill’ caused by agricultural discharge in Co Louth The JournalInvestigation into significant fish kill at River Glyde Irish Farmers JournalLouth river incident is one of Ireland’s worst fish kills on record The Irish Times