The Czech Republic has filed an official appeal for assistance to the European Union due to the number of Ukrainian refugees who have arrived there fleeing Russia’s invasion. The government is requesting a shipment of containers so it can house 50,000 people, says fire services spokesperson Pavla Jakoubkova. “Every space that gets freed up is immediately filled again.” If that pace continues, new arrivals will have to be housed in gymnasiums or tent camps. So far, the Czech Republic has been able to house them in hotels or flats. Authorities estimate about 200,000 refugees have come to the Cze…