Investigation after hundreds of dead fish found in  a County Londonderry river

The Loughs Agency confirmed it was notified  of a suspected fish kill near Ballykelly village .after after more than 400 dead fish were discovered in a County Londonderry river  mainly trout, along with several salmon and flounder, across a stretch of about 500m, downstream of the village, beginning just below a discharge pipe.

Causes of fish Killed
Officials believe the incident may have been caused by a "cleaning agent" entering the water system.Second fish kill reported to Loughs Agency . Meanwhile, the Loughs Agency has been alerted to another fish kill on the Ballinamullan River, a tributary of the Camowen River near Omagh.Investigations into the cause are currently ongoing in collaboration with the relevant authorities," a spokesperson said.

In a statement

In a statement, the Loughs Agency said a detailed investigation was carried out in partnership with the Northern Ireland Environment Agency's (NIEA) Water Management Unit upon the discovery of the dead fish. . 
The Loughs Agency added that while the majority of affected fish have been recovered, some may still remain in the river.
Investigations are underway to determine the true causes behind the death of this large number of fish.

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Source of image : North Ireland  Source : BBC 

Loughs Agency , Ballykelly village , Londonderry river , dead fish. , Investigations , (NIEA) ,Causes of fish Killed,