KYIV, July 31 - Russian ballistic missiles slammed into an apartment complex and a university building in President Volodymyr Zelenskyy’s hometown Monday, killing six people and wounding 75 others as the blasts trapped residents beneath rubble, Ukrainian officials said.

One of the two missiles that hit the central city of Kryvyi Rih destroyed part of an apartment building between the fourth and ninth floors, Interior Minister Ihor Klymenko said. Video showed black smoke billowing from corner units and burned out or damaged cars on a tree-lined street.

The dead included a 10-year-old girl and her mother, according to Zelenskyy. More than 350 people were involved in the rescue operation, he said in a Telegram post.

The morning attack also destroyed part of a four-story university building.

The strike on Zelenskyy’s hometown, which has been hit in the past, happened a day after the Ukrainian president seemed to warn of more attacks inside Russia.

“Gradually, the war is returning to the territory of Russia — to its symbolic centers and military bases, and this is an inevitable, natural and absolutely fair process,” Zelenskyy said Sunday in his nightly video address.

It was not clear whether the missile strikes were in retaliation for his comments.

Ukrainian drones again targeted Moscow and its surroundings early Tuesday morning, the Russian military reported. Two of three launched were shot down outside Moscow, while one crashed into a skyscraper in the Moscow City business district, damaging the building’s facade.

Moscow Mayor Sergei Sobyanin said the drone crashed into the same building that was damaged in a similar attack early Sunday, which contains offices of several government agencies. Sobyanin said the Tuesday attack didn’t result in any casualties.

It wasn’t clear why the same building was hit twice in a row. In both incidents, the Russian military said the drones that hit the skyscraper were jammed before collapsing. Ukrainian officials did not immediately comment on the attack.

Russian officials insist they take aim only at legitimate military targets, but Ukraine and its supporters say mass civilian deaths during previous attacks are evidence of war crimes.

“In recent days, the enemy has been stubbornly attacking cities, city centers, shelling civilian objects and housing,” Zelenskyy said. “But this terror will not frighten us or break us.”

Russian shelling Monday also killed four civilians and wounded 17 in the southern Ukrainian city of Kherson. A 70-year-old woman was killed by shelling in her home in a Kharkiv province village near Izyum, authorities said. (ap/ez)