Activists shout slogans and hit helmets on the ground during a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists shout slogans and hit helmets on the ground during a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists shout slogans and hit helmets on the ground during a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists shout slogans and hit helmets on the ground during a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists shout slogans and hit helmets on the ground during a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists shout slogans and hit helmets on the ground during a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists shout slogans and hit helmets on the ground during a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists shout slogans and hit helmets on the ground during a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists take part in a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists take part in a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists shout slogans and hit helmets on the ground during a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists shout slogans and hit helmets on the ground during a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)

Activists take part in a rally of the Ukrainian Trade Unions Federation outside President Volodymyr Zelensky's office in Kiev on June 30, 2020. - Protesters demanded to repeal the anti-social labor law promoted by the government of President Zelensky, to pay salaries arrears and to support workers affected by the economic crisis due to anti-coronavirus restrictions. (Photo by Sergei SUPINSKY / AFP)