Russia overnight launched a heavy air attack on Ukraine -- including striking Kyiv with drones and ballistic missiles -- that killed at least six people, including two children. It came hours after plans for President Donald Trump's proposed summit with Russian President Vladimir Putin appeared to fall apart, leaving hopes of movement in the coming days towards ending the war once again in tatters. Russia also directly struck a kindergarten in the eastern city of Kharkiv, according to Kyiv. At least one drone hit the building where nearly 50 young children were inside, Ukrainian officials said. Fortunately many or all were in its shelter, the local governor said.