Ukraine said more evidence has emerged of mass killings of civilians and other atrocities by Russian forces in regions around Kyiv, while dismissing Russian denials of committing war crimes as “lies” and “new old tactics of Russian propagandists.”

Ukraine President Volodymyr Zelenskyy said in a video address early Tuesday that a day prior he visited cities in the Kyiv region that had been liberated from Russian occupying forces, namely Stoyanka, Irpin, and Bucha.

Zelenskyy said the cities are “simply ruined,” with destroyed cars and burnt military equipment littering the roads. While the bodies of killed Ukrainian civilians have mostly been removed from the streets of the towns near Kyiv where they lay as Russian forces withdrew, Zelenskyy said that, “in the yards, in the houses, the dead still remain.”