Vast amounts of chemical waste were probably dumped into a river on the Polish-German border, Poland's prime minister said Friday, killing tons of fish and creating an ecological disaster that could take years to clean up.
Authorities said 150 Polish troops have been deployed to the 522-mile-long Oder River, which flows through Poland, Germany and the Czech Republic, to launch a cleanup operation. The chemical spill was likely intentional, Prime Minister Mateusz Morawiecki said on a podcast Friday.