Natalia Pototska, 43, cries as her grandson Matviy looks on in a car at a center for displaced people in Zaporizhzhia, Ukraine, on May 2, 2022.

Video. 'Flee or freeze': Europe 'must brace for 100,000s' of Ukraine refugees

"Europe has to prepare for hundreds of thousands of new refugees this winter from Norway in the north to the southern European countries."