KYIV, Ukraine, July 29, (AP): Russian glide bombs and missiles struck a Ukrainian prison and a medical facility overnight, killing at least 21 people, officials said Tuesday, as Russia kept up its bombardment of civilian areas despite US President Donald Trump’s threat to soon punish Russia with sanctions and tariffs unless it stops.

A Russian airstrike on a prison in Ukraine’s southeastern Zaporizhzhia region killed at least 17 inmates and wounded more than 80 others, officials said. In the Dnipro region, authorities reported at least four people were killed and eight injured. Trump said Monday he is 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 Aug. 7-9. Trump has repeatedly rebuked Putin for talking about ending the war but continuing to bombard Ukrainian civilians. But the Kremlin hasn't changed its tactics. "I’m disappointed in President Putin,” Trump said during a visit to Scotland.

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 neighbor, 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.