Live updates: Zelensky pushes call for Ukraine no-fly zone

Ukrainian President Voldymyr Zelensky is pushing his call for foreign countries to impose a no-fly zone over Ukraine.

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LVIV, Ukraine -- Ukrainian President Voldymyr Zelensky is pushing his call for foreign countries to impose a no-fly zone over Ukraine.

Establishing a no-fly zone would risk escalating the conflict by involving foreign militaries directly. Although the United States and many Western countries have backed Ukraine with weapons shipments, they have sent no troops.

Zelensky said in a video address on Sunday that "the world is strong enough to close our skies."