Berlin — A river on the German-Polish border has become a mass grave. Volunteers and authorities have been busy for days removing tons of dead fish floating on the surface of the Oder River.

Germany has issued a warning to Poland over the mystery deaths of tonnes of fish in the Oder River that runs along the shared border. Steffi Lemke, the German environment minister, has announced ...

WARSAW, Poland — Germany’s environment minister said the mass die-off of fish in the Oder River is an ecological catastrophe and it isn’t clear yet how long it will take the river to recover.

Dead fish float in the shallow waters of the German-Polish border river Oder near Genschmar, eastern Germany, Friday, Aug. 12, 2022. Huge numbers of dead fish have washed up along the banks of the ...

Authorities in Brandenburg in eastern Germany continue to prepare flood defenses and plans to evacuate affected areas if necessary, as high water flows along the Oder River from central Europe ...

BERLIN (AP) — Several substances seem to have contributed to the massive fish die-off in the Oder River that forms much of Germany’s border with Poland, a German official said Monday.