Soon after Russia's attack, Ukraine President Volodymyr Zelenskyy called for a ceasefire and for world leaders to put pressure on Russia to stop the attacks.

Russian warplanes were damaged but not destroyed in a June 1 attack by Ukraine, and they will be restored, Russia's deputy foreign minister said.

The head of the Security Service of Ukraine, Vasyl Malyuk, said a day after the strike that 41 enemy aircraft were destroyed. Other assessments, however, including one by BBC News Ukraine, tallied a more modest number, upward of 11 destroyed jets.