Ukrainian activists, some of them wearing face masks in Belarus' national colors to protect against coronavirus, wave Ukrainian and Belarusian flags at a rally in support of Belarus' opposition in the Independence Square in Kyiv, Ukraine, Sunday, June 28, 2020. The Ukrainian activists demanded Belarusian authorities to stop political repression in their country. (AP Photo/Efrem Lukatsky)

Ukrainian activists, some of them wearing face masks in Belarus' national colors to protect against coronavirus, wave Ukrainian and Belarusian flags at a rally in support of Belarus' opposition in the Independence Square in Kyiv, Ukraine, Sunday, June 28, 2020. The Ukrainian activists demanded Belarusian authorities to stop political repression in their country. (AP Photo/Efrem Lukatsky)

Ukrainian activists, some of them wearing face masks in Belarus' national colors to protect against coronavirus, wave Ukrainian and Belarusian flags at a rally in support of Belarus' opposition in the Independence Square in Kyiv, Ukraine, Sunday, June 28, 2020. The Ukrainian activists demanded Belarusian authorities to stop political repression in their country. (AP Photo/Efrem Lukatsky)