A factory and a store burn after being bombarded in Irpin, on the outskirts of Kyiv, Ukraine, Sunday, March 6, 2022. (Emilio Morenatti/AP)

A factory and a store are burning after been bombarded in Irpin, in the outskirts of Kyiv, Ukraine, Sunday, March 6, 2022. (Emilio Morenatti/AP)

Ukrainian servicemen help an elderly woman, in the town of Irpin, Ukraine, Sunday, March 6, 2022. (Andriy Dubchak/AP)

Ukrainian servicemen carry a baby stroller after crossing the Irpin River on an improvised path under a bridge that was destroyed by a Russian airstrike, while assisting people fleeing the town of Irpin, Ukraine, Saturday, March 5, 2022. (Vadim Ghirda/AP)

A Ukrainian serviceman holds a baby crossing the Irpin river on an improvised path under a bridge that was destroyed by a Russian airstrike, while assisting people fleeing the town of Irpin, Ukraine, Saturday, March 5, 2022. (Vadim Ghirda/AP)

People cross on an improvised path under a bridge that was destroyed by a Russian airstrike, while fleeing the town of Irpin, Ukraine, Saturday, March 5, 2022. (Vadim Ghirda/AP)

A woman holds a dog while crossing the Irpin River on an improvised path under a bridge that was destroyed by a Russian airstrike, while assisting people fleeing the town of Irpin, Ukraine, Saturday, March 5, 2022. (Vadim Ghirda/AP)

People cross on an improvised path under a bridge that was destroyed by a Russian airstrike, while fleeing the town of Irpin, Ukraine, Saturday, March 5, 2022. (Vadim Ghirda/AP)

Ukrainian civilians receive weapons training inside a cinema in Lviv, western Ukraine, Saturday, March 5, 2022. (Felipe Dana/AP)

Ukrainian soldiers drive on an armored military vehicle in the outskirts of Kyiv, Ukraine, Saturday, March 5, 2022. (AP Photo/Emilio Morenatti)

Ukrainian paramedics cover a grave with their country's flag of their colleague Valentyna Pushych, who was killed by Russian troops in a cemetery in Kyiv, Ukraine, Saturday, March 5, 2022. (Efrem Lukatsky/AP)

Glass on a hospital window is shattered by shelling in Mariupol, Ukraine, Thursday, March 3, 2022. (Evgeniy Maloletka/AP)

The children of medical workers warm themselves in a blanket as they wait for their relatives in a hospital in Mariupol, Ukraine, Friday, March 4, 2022. (Evgeniy Maloletka/AP)

A woman traveling with others fleeing Ukraine, looks out of the window of a bus near the border crossing in Korczowa, Poland, Saturday, March 5, 2022. (Visar Kryeziu/AP)

Refugees, mostly women with children, rest inside a tent after arriving at the border crossing, in Medyka, Poland on Sunday, March 6, 2022. (Visar Kryeziu/AP)

Refugees, mostly women with children, rest inside a tent after arriving at the border crossing, in Medyka, Poland on Sunday, March 6, 2022. (Visar Kryeziu/AP)