City Hall building in Kharkiv, Ukraine

A view of the central square following shelling of the City Hall building in Kharkiv, Ukraine, Tuesday, March 1, 2022.

Russian forces escalated their attacks on populated urban areas Tuesday, bombarding the central square in Ukraine’s second-largest city and Kyiv’s main TV tower.

Ukraine’s president accused Moscow of a blatant campaign of terror and vowed: “Nobody will forgive. Nobody will forget.”

With the Kremlin increasingly isolated by tough economic sanctions that have tanked the ruble currency, Russian troops advanced on Ukraine’s two biggest cities.

In strategic Kharkiv, explosions tore through the region’s Soviet-era administrative building and residential areas on Day 6 of an invasion that has shaken the 21st century world order.

Ukrainian authorities said five people were killed and five wounded in the attack on the Kyiv TV tower.

Kyiv Mayor Vitali Klitschko said an electrical substation powering the tower and a control room on the tower were damaged as the result.

The head of Ukrainian President Volodymyr Zelenskyy's office, Andriy Yermak, said on Facebook that a “powerful missile attack on the territory where the (Babi) Yar memorial complex is located” is underway.

Babi Yar, a ravine in Kyiv, is where nearly 34,000 Jews were killed within 48 hours in 1941 when the city was under Nazi occupation. The killing was carried out by SS troops along with local collaborators.

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