Dead fish found on River Thet where large stretch of white foam appeared

Environment Agency officers are investigating the cause of a large volume of foam bubbling up in the River Thet in the centre of Thetford. Photograph: EnvAgencyAnglia

Dead fish have been found on a river in Norfolk where a large stretch of white foam appeared, the Environment Agency has confirmed.

Images shared by the agency on Saturday showed the foam covering an area of the River Thet.