https://www.bbc.co.uk/news/uk-england-manchester-50301072A city centre river has been covered in a mystery white foam overnight.Part of the River Roch and a large stretch of the River Irwell between Salford and Manchester is blanketed in the unknown substance.
Residents suggested it looked like "leaking bubble bath" and expressed concerns for wildlife on the river.
Environment Agency officers are on site investigating and Salford City Council said it would "advise residents accordingly".
"At certain times of year we get a lot of calls about foam in rivers and still waters," an Environment Agency spokesman said.