Belarus’ authoritarian President Alexander Lukashenko is all but certain to extend his more than three decades in power in Sunday’s election that is rejected by the opposition as a farce after years of sweeping repressions.

Belarus' opposition activists and Western officials on Monday denounced an orchestrated election that extends the more than three-decade rule of authoritarian President Alexander Lukashenko. The country's exiled opposition leader called the result “sheer nonsense.

Belarusians are voting in a closely-managed presidential election that is all but certain to extend the one-man rule of Alexander Lukashenko, in power since 1994 and Europe’s longest-serving leader.

Britain on Monday imposed sanctions targeting Belarusian officials and defence companies after joining Western governments in condemning what they called "sham" presidential elections in the country.

Belarus held an orchestrated election over the weekend that the opposition and the EU rejected as a farce, extending President Lukashenko's more than 30 years in power.