Russia bombarded Ukraine’s second-largest city with massive strikes in the early hours of Saturday, its mayor said, one night after Moscow carried out one of the war’s largest aerial assaults on Ukraine.

Ukrainian President Volodymyr Zelenskyy said he was sending a Ukrainian delegation to Istanbul for another face-to-face with Russian representatives.

Former Rep. Chris Stewart, a former fighter pilot, says the U.S. isn’t prepared for this change in modern warfare.

KYIV, Ukraine (AP) — Russia struck Ukraine with a thunderous aerial bombardment overnight, further dampening hopes that the warring sides could reach a peace deal anytime soon days after Kyiv embarrassed the Kremlin with a surprising drone attack on military airfields deep inside Russia.

When the chief of the local fire department was called to a scene of a Russian strike in the central Ukrainian city of Pryluky overnight, he and his brigade found five people were killed and nine injured after a drone hit a residential building.

President Trump said he discussed Ukraine's recent attacks on Russian bombers with Putin, adding that he's not optimistic about "immediate peace."

A surprise drone attack like Ukraine's Operation Spiderweb may force a rethink of the threats the Golden Dome air defense network must defend against.

Russian President Vladimir Putin told President Donald Trump in a phone call Wednesday that he was obligated to respond to Ukraine’s weekend drone attack, Trump said, setting up a potential escalation in the conflict just as the US president hopes to broker an end to the war.