But the Bolshaya drainage is only one of many river systems on the peninsula, and its hatchery fish aren't representative of Kamchatka wild salmon. Circumstances elsewhere are different ...

The Kamchatka administration website says Russia's emergencies ministry is investigating. Specialists are collecting samples from the beaches and rivers and using drones to help in their analysis.

Greenpeace Russia has sent its own teams to investigate the incident The mass death of sea creatures off the coast of Kamchatka in Russia's far east was most likely caused by toxic algae and not ...