Hundreds of fish have been killed after about 1,000 gallons (4,500 litres) of liquid soap leaked into a stream, reports the BBC.
The water in Chalvey Ditch, near Slough, Berkshire, turned cloudy-white following the spillage.
Other creatures including frogs and eels have also died and a clean-up operation is expected to last for several days. The Environment Agency is looking into the spillage and said it could start a criminal investigation.
Fish, Wildlife Die after Leak
UK - Hundreds of fish are reported dead after a leak into a Berkshire river.