Russia and Ukraine have exchanged hundreds more prisoners as part of a major swap that amounted to a rare moment of cooperation in otherwise failed efforts to reach a ceasefire.

Trump made clear his frustration with the Russian president's continued aggression, saying, "I don’t know what the hell happened to Putin."

Russia launched a large drone and missile attack on Kyiv early Saturday, injuring six and damaging buildings across the city as the next stage of a prisoner swap begins.

NATO scrambled fighter jets after Russia launched a massive air attack on Ukraine for a second consecutive night – killing at least seven people. Dozens of people were injured, including