Ukraine on Tuesday said 150 tonnes of engine oil has spilled into the Dnipro River after an attack on the Kakhovka dam and warned of a "negative impact" on the environment.
"One hundred and fifty tonnes of engine oil got into the Dnipro River due to the explosion," Daria Zarivna, communications adviser to the head of the Ukrainian president's office, said on social media.
Ukraine and Russia have traded blame over the attack on the major dam that led to flooding in some of the settlements in the region.
Ukraine's Foreign Ministry on Tuesday called it a "Russian terrorist attack" and demanded an urgent meeting of the United Nations Security Council on the matter. Meanwhile, Russia's Investigative Committee said it has opened a case of a terrorist attack regarding the dam destruction.
(With input from agencies)