A suspected pollution incident has killed a significant number of fish and other wildlife including eels and birds on a tributary of the River Spey. A chemical, thought to be caustic soda, is understood to have entered the water at Knockando burn in Moray in recent days. The Scottish Environment Protection Agency (SEPA) confirmed it is investigating a potential pollution incident on the burn. Fly fishing anglers say the salmon population at the burn has been wiped out and could take five years to recover, with a 2km stretch of the watercourse “destroyed”. Image: Pic: PA/Spey Fishery Board Datawrapper This content is provided by Datawrapper, which may be using cookies and other technologies. To show you this content, we need your permission to use cookies. You can use the buttons below to amend your preferences to enable Datawrapper cookies or to allow those cookies just once. You can change your settings at any time via the Privacy Options. Unfortunately we have been unable to verify if you have consented to Datawrapper cookies. To view this …