Four powerful Russian glide bombs hit a prison in Ukraine's southeastern Zaporizhzhia region overnight, authorities said on Tuesday, killing at least 17 inmates and wounding more than 80 others.
In the Dnipro region of central Ukraine, authorities said Russian missiles partially destroyed a three-storey building and damaged nearby medical facilities, including a maternity hospital and a city hospital ward.
Officials said at least four people were killed and eight injured, including a pregnant woman who was in a serious condition.
Ukrainian President Volodymyr Zelenskiy said that across the country, 22 people were killed in Russian strikes on 73 cities, towns and villages.
"These were conscious, deliberate strikes - not accidental," Zelenskiy posted on social media.
Trump said Monday he was giving Russian President Vladimir Putin 10 to 12 days to stop the killing in Ukraine after three years of war, moving up a 50-day deadline he had given the Russian leader two weeks ago.
The move meant Trump wants peace efforts to make progress by August 7-9.
Trump has repeatedly rebuked Putin for talking about ending the war but continuing to bombard Ukrainian civilians.
But the Kremlin has not changed its tactics.
"I'm disappointed in President Putin," Trump said during a visit to Scotland.
Zelenskiy welcomed Trump's move on the timeline.
"Everyone needs peace- Ukraine, Europe, the United States, and responsible leaders across the globe," Zelenskiy posted.
"Everyone except Russia."
The Kremlin pushed back, however, with a top Putin lieutenant warned Trump against "playing the ultimatum game with Russia".
"Russia isn't Israel or even Iran," former president Dmitry Medvedev, who is deputy head of the country's Security Council, wrote on social platform X.
"Each new ultimatum is a threat and a step towards war. Not between Russia and Ukraine, but with his own country," Medvedev said.
Since Russia's full-scale invasion of its neighbour, the Kremlin has warned Kyiv's Western backers that their involvement could end up broadening the war to NATO countries.
"Kremlin officials continue to frame Russia as in direct geopolitical confrontation with the West in order to generate domestic support for the war in Ukraine and future Russian aggression against NATO," the Institute for the Study of War, a Washington think tank, said late Monday.
The Ukrainian air force said Russia launched two Iskander-M ballistic missiles along with 37 Shahed-type strike drones and decoys at Ukraine overnight.
They say 32 Shahed drones were intercepted or neutralised by Ukrainian air defences.
The Russian attack hit the Bilenkivska Correctional Facility with four guided aerial bombs, according to the State Criminal Executive Service of Ukraine.
At least 42 inmates were hospitalised with serious injuries, while another 40 people, including one staff member, suffered various injuries.
The strike destroyed the prison's dining hall, damaged administrative and quarantine buildings, but the perimeter fence held and no escapes were reported.
Ukrainian officials condemned the attack, saying that targeting civilian infrastructure, such as prisons, is a war crime under international conventions.
Further Russian attacks hit communities in Synelnykivskyi district with FPV drones and aerial bombs, killing at least one person and injuring two others.
According to Lysak, Russian forces also targeted the community of Velykomykhailivska, killing a 75-year-old woman and injuring a 68-year-old man.
