Further downstream, in Germany's "other" Frankfurt (not to be mistaken with the financial capital on the River Main in the west) and to its north, level 3 flood warnings were in effect.

In the past weeks, the public has been shocked by images showing masses of dead fish floating in the Oder River, on the German-Polish border. Recent reports speak of 150 to 200 tons of fish killed.

Poland says the Oder River disaster could have been caused by an intentional dumping of chemicals, although scientists say climate change may have had a role.

Germany said Friday that mass fish deaths in the Oder River were a "man-made environmental disaster," blaming toxic algae growth sparked by the introduction of salt into the waters. Presenting a ...

Greenpeace environmental group said Thursday that wastewater discharge from Poland’s coal mines was most likely responsible for the 2022 massive fish die-off in the Oder River. Greenpeace Poland ...

Officials in Poland and Germany are trying to work out the cause of a mass fish die-off along the Oder river, which runs between the two countries. Thousands of dead fish have been appearing along ...

Tonnes of dead fish have been hauled out of the River Oder, which flows along part of Poland's border with Germany, and officials warned people not to enter the water while the Polish government ...

A large overgrowth of toxic algae linked to industrial pollution is the most likely culprit behind mass fish deaths in the river Oder, a German research institute said.

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. Numerous ...

After hundreds of tons of dead fish were removed from the Oder River bordering Germany in August, new die-offs have compounded the ecological disaster. The causes are complex.