Locals in a Greater Manchester town were left horrified when their river started foaming.
Roads and cars near the River Tame in Dukinfield were covered in white bubbles as the mysterious substance was blown by the wind on Monday.
Local Sam Pedder captured the scenes on camera. He said: "This is unbelievable, in the 34 years I've lived down on the River Tame in Dukinfield I have never seen it this bad. Something has obviously been dumped into it further up stream and caused this absolute disgrace."