A probe is continuing into the extent of the damage caused by a pollution incident on a tributary of the Moyola.
Dead fish were discovered on a two mile stretch of the Altagoan River, near Draperstown on Friday.
It’s understood the source of the problem has been traced to nearby premises.
A spokesperson for the Department of Agriculture, Environment and Rural Affairs says the investigation has been continuing over the weekend.
However bad weather has been hampering the probe.
‘Much more to do’ to protect children in NI from sexual exploitation – report
By Jonathan McCambridge (PA)
Woman in critical condition after she's struck by car in Belfast
Q Radio News
Man dies following road accident in County Fermanagh
Q Radio News
Executive will ‘have to deal’ with compensation costs from PSNI data breach
By Jonathan McCambridge (PA)
Man remanded in custody charged in connection with mosque burning plot
Download the Q Radio app to keep listening, wherever you are! It's available on Apple and Android devices.
Download from the App Store Download from Google Play
