A Belarusian police officer detains a man in Minsk, Belarus, Saturday, Aug. 8, 2020. On Saturday evening, police arrested at least 10 people as hundreds of opposition supporters drove through the center of the capital waving flags and brandishing clenched-fist victory signs from the vehicles' windows. The presidential election in Belarus is scheduled for August 9, 2020. (AP Photo/Sergei Grits)

Belarusian police officers detain a man in Minsk, Belarus, Saturday, Aug. 8, 2020. On Saturday evening, police arrested at least 10 people as hundreds of opposition supporters drove through the center of the capital waving flags and brandishing clenched-fist victory signs from the vehicles' windows. The presidential election in Belarus is scheduled for August 9, 2020. (AP Photo/Sergei Grits)

Belarusian police officers detain a man in Minsk, Belarus, Saturday, Aug. 8, 2020. On Saturday evening, police arrested at least 10 people as hundreds of opposition supporters drove through the center of the capital waving flags and brandishing clenched-fist victory signs from the vehicles' windows. The presidential election in Belarus is scheduled for August 9, 2020. (AP Photo/Sergei Grits)

Belarusian police officers detain a man in Minsk, Belarus, Saturday, Aug. 8, 2020. On Saturday evening, police arrested at least 10 people as hundreds of opposition supporters drove through the center of the capital waving flags and brandishing clenched-fist victory signs from the vehicles' windows. The presidential election in Belarus is scheduled for August 9, 2020. (AP Photo/Sergei Grits)

People in a car hold national flag as they take part in a flash mob ahead of presidential elections in Minsk, Belarus, Saturday, Aug. 8, 2020. On Saturday evening, police arrested at least 10 people as hundreds of opposition supporters drove through the center of the capital waving flags and brandishing clenched-fist victory signs from the vehicles' windows. The presidential election in Belarus is scheduled for August 9, 2020. (AP Photo/Sergei Grits)

Belarusian police officers detain a man in Minsk, Belarus, Saturday, Aug. 8, 2020. On Saturday evening, police arrested at least 10 people as hundreds of opposition supporters drove through the center of the capital waving flags and brandishing clenched-fist victory signs from the vehicles' windows. The presidential election in Belarus is scheduled for August 9, 2020. (AP Photo/Sergei Grits)

Belarus's riot police officers detain a man during an opposition rally on the eve of the presidential election in central Minsk on August 8, 2020. - Belarus holds a high-stakes presidential election on August 9, 2020, with Svetlana Tikhanovskaya opposition candidate posing the greatest challenge yet to long-ruling strongman Alexander Lukashenko. The 65-year-old and Europe's longest-serving leader, has headed the ex-Soviet country bordering Russia since 1994 and polls are expected to hand him his sixth term. Tikhanovskaya has drawn huge crowds to campaign rallies throughout the country after she was allowed to participate in place of her husband who was jailed and barred from running. Lukashenko also jailed two of his main rivals in the elections while another would-be candidate fled the country. (Photo by Sergei GAPON / AFP)

Belarus's riot police officers detain a man during an opposition rally on the eve of the presidential election in central Minsk on August 8, 2020. - Belarus holds a high-stakes presidential election on August 9, 2020, with Svetlana Tikhanovskaya opposition candidate posing the greatest challenge yet to long-ruling strongman Alexander Lukashenko. The 65-year-old and Europe's longest-serving leader, has headed the ex-Soviet country bordering Russia since 1994 and polls are expected to hand him his sixth term. Tikhanovskaya has drawn huge crowds to campaign rallies throughout the country after she was allowed to participate in place of her husband who was jailed and barred from running. Lukashenko also jailed two of his main rivals in the elections while another would-be candidate fled the country. (Photo by Sergei GAPON / AFP)

Riot police officers detain a man during an opposition rally on the eve of the presidential election in central Minsk on August 8, 2020. - Belarus holds a high-stakes presidential election on August 9, 2020, with Svetlana Tikhanovskaya opposition candidate posing the greatest challenge yet to long-ruling strongman Alexander Lukashenko. The 65-year-old and Europe's longest-serving leader, has headed the ex-Soviet country bordering Russia since 1994 and polls are expected to hand him his sixth term. Tikhanovskaya has drawn huge crowds to campaign rallies throughout the country after she was allowed to participate in place of her husband who was jailed and barred from running. Lukashenko also jailed two of his main rivals in the elections while another would-be candidate fled the country. (Photo by Sergei GAPON / AFP)

Belarus opposition supporters make a V-sign as they hold a national flag during a rally on the eve of the presidential election in central Minsk on August 8, 2020. - Belarus holds a high-stakes presidential election on August 9, 2020, with Svetlana Tikhanovskaya opposition candidate posing the greatest challenge yet to long-ruling strongman Alexander Lukashenko. The 65-year-old and Europe's longest-serving leader, has headed the ex-Soviet country bordering Russia since 1994 and polls are expected to hand him his sixth term. Tikhanovskaya has drawn huge crowds to campaign rallies throughout the country after she was allowed to participate in place of her husband who was jailed and barred from running. Lukashenko also jailed two of his main rivals in the elections while another would-be candidate fled the country. (Photo by Sergei GAPON / AFP)

A man raises his fist as he drives near an opposition rally on the eve of the presidential election in central Minsk on August 8, 2020. - Belarus holds a high-stakes presidential election on August 9, 2020, with Svetlana Tikhanovskaya opposition candidate posing the greatest challenge yet to long-ruling strongman Alexander Lukashenko. The 65-year-old and Europe's longest-serving leader, has headed the ex-Soviet country bordering Russia since 1994 and polls are expected to hand him his sixth term. Tikhanovskaya has drawn huge crowds to campaign rallies throughout the country after she was allowed to participate in place of her husband who was jailed and barred from running. Lukashenko also jailed two of his main rivals in the elections while another would-be candidate fled the country. (Photo by Sergei GAPON / AFP)

Belarus opposition supporters make a V-sign as they hold a national flag during a rally on the eve of the presidential election in central Minsk on August 8, 2020. - Belarus holds a high-stakes presidential election on August 9, 2020, with Svetlana Tikhanovskaya opposition candidate posing the greatest challenge yet to long-ruling strongman Alexander Lukashenko. The 65-year-old and Europe's longest-serving leader, has headed the ex-Soviet country bordering Russia since 1994 and polls are expected to hand him his sixth term. Tikhanovskaya has drawn huge crowds to campaign rallies throughout the country after she was allowed to participate in place of her husband who was jailed and barred from running. Lukashenko also jailed two of his main rivals in the elections while another would-be candidate fled the country. (Photo by Sergei GAPON / AFP)

A driver holds a former white-red-white flag of Belarus used in opposition to the government during a rally on the eve of the presidential election in central Minsk on August 8, 2020. - Belarus holds a high-stakes presidential election on August 9, 2020, with Svetlana Tikhanovskaya opposition candidate posing the greatest challenge yet to long-ruling strongman Alexander Lukashenko. The 65-year-old and Europe's longest-serving leader, has headed the ex-Soviet country bordering Russia since 1994 and polls are expected to hand him his sixth term. Tikhanovskaya has drawn huge crowds to campaign rallies throughout the country after she was allowed to participate in place of her husband who was jailed and barred from running. Lukashenko also jailed two of his main rivals in the elections while another would-be candidate fled the country. (Photo by Sergei GAPON / AFP)

People hold a former white-red-white flag of Belarus used in opposition to the government during a rally on the eve of the presidential election in central Minsk on August 8, 2020. - Belarus holds a high-stakes presidential election on August 9, 2020, with Svetlana Tikhanovskaya opposition candidate posing the greatest challenge yet to long-ruling strongman Alexander Lukashenko. The 65-year-old and Europe's longest-serving leader, has headed the ex-Soviet country bordering Russia since 1994 and polls are expected to hand him his sixth term. Tikhanovskaya has drawn huge crowds to campaign rallies throughout the country after she was allowed to participate in place of her husband who was jailed and barred from running. Lukashenko also jailed two of his main rivals in the elections while another would-be candidate fled the country. (Photo by Sergei GAPON / AFP)

A man reads pre-election posters on the eve of the presidential election in central Minsk on August 8, 2020. - Belarus holds a high-stakes presidential election on August 9, 2020, with Svetlana Tikhanovskaya opposition candidate posing the greatest challenge yet to long-ruling strongman Alexander Lukashenko. The 65-year-old and Europe's longest-serving leader, has headed the ex-Soviet country bordering Russia since 1994 and polls are expected to hand him his sixth term. Tikhanovskaya has drawn huge crowds to campaign rallies throughout the country after she was allowed to participate in place of her husband who was jailed and barred from running. Lukashenko also jailed two of his main rivals in the elections while another would-be candidate fled the country. (Photo by Sergei GAPON / AFP)

A man walks past election posters on the eve of the presidential election in central Minsk on August 8, 2020. - Belarus holds a high-stakes presidential election on August 9, 2020, with Svetlana Tikhanovskaya opposition candidate posing the greatest challenge yet to long-ruling strongman Alexander Lukashenko. The 65-year-old and Europe's longest-serving leader, has headed the ex-Soviet country bordering Russia since 1994 and polls are expected to hand him his sixth term. Tikhanovskaya has drawn huge crowds to campaign rallies throughout the country after she was allowed to participate in place of her husband who was jailed and barred from running. Lukashenko also jailed two of his main rivals in the elections while another would-be candidate fled the country. (Photo by Sergei GAPON / AFP)