FILE PHOTO: Students attend a geography class at a school in an open-air classroom organised on a playground amid the coronavirus disease (COVID-19) outbreak, in Lviv, Ukraine September 9, 2020. REUTERS/Roman...

FILE PHOTO: A medical worker wearing protective gear stands next to an ambulance outside a hospital for patients infected with the coronavirus disease (COVID-19) in Kyiv, Ukraine November 24, 2020. REUTERS/Gleb...

Ukraine on Friday imposed a broad lockdown aimed at containing surging coronavirus infections, but some cities appeared to be largely ignoring the restrictions and critics said the move was worrisomely...