A spat between President Donald Trump and Ukrainian President Volodymyr Zelenskyy has come as a windfall for the Kremlin, raising Moscow's hopes for a halt in the U.S. assistance to Kyiv even as Russian troops seek to extend their gains in Ukraine.

When emergency workers arrived at the home of Tetyana Kulyk and her husband Pavlo Ivanchov shortly after it was hit by a Russian drone on Wednesday, all they could do was recover their charred bodies.