'Aquatic species including ray fish, lamprey, stone loach and invertebrates also died'

'It seems to me that we have lost our sense of outrage at stuff like this happening'

'There is not a doubt but this was caused by some sort of spill that entered the river and had a massive impact on the fish'

IFI says it is not in a position to comment on the cause of the fish kill as investigations are ongoing.

It's been warned there could be more deaths to come if the incident is related to farm pollution.

It's believed the recent heatwave and algae bloom could have could have impacted oxygen levels in the lake.