Mass fish die-off in German-Polish river blamed on unknown toxic

Mystery toxin suspected as 100 tons of dead fish removed from Oder

Mass fish die-off in German-Polish river blamed on unknown toxic

10 tons of dead fish found in Polish-German river

Could a mass fish die-off in the Oder River happen again? – DW

Germany says mass fish deaths in Oder river a 'man-made disaster

Cause of fish deaths in Oder still unknown - CGTN

Unknown, Highly Toxic Substance' Seems to Be Killing Tons of Fish

Mass fish die-off in German-Polish river blamed on unknown toxic

Mass fish deaths in German-Polish river 'probably' caused by

Photos: Mystery surrounds mass fish deaths in the Oder River

Mysterious mass fish kill in Oder River expands – DW – 09/05/2022