"According to updated information, as of Monday morning, the death toll from the breach of the Kakhovka hydroelectric power station increased to 48 people," the spokesperson said.
The upper part of the Kakhovka power plant on the Dnipro River was damaged overnight from June 5 to June 6.
Its crumbling caused an uncontrollable outflow of water to towns on the Russian-controlled eastern bank of the river and the Ukrainian-held western bank.
Moscow and Kiev have blamed each other for the dam's destruction. Authorities in some of the affected areas evacuated the population.