It is understood that the problem was first noticed this morning and that large quantities of dead fish have been seen flowing downstream all day.

A statement on the Wicklow County Council website said that they have temporarily shut off raw water supply intake from Vartry River to our Water Treatment plant at Cronroe as a precaution.

Local sources said reports had been received of dead fish as high up the river as Roundwood, and as far down the river as Ashford……..RTE News…….28/06/12….read full article….

http://www.rte.ie/inland-fisheries-investigating-wicklow-fish-kill

Reports have been received of dead fish as high up the river as Roundwood, and as far down the river as Ashford
Reports have been received of dead fish as high up the river as Roundwood, and as far down the river as Ashford