Alexander Lukashenko, Europe’s longest-serving leader, has extended his 31-year rule in Belarus after being declared the winner of a presidential election that his exiled opponents and Western countries have denounced as a sham.

Europe’s longest-serving leader won re-election in a contest widely believe to have been rigged. The result cements the power of a leader whose country is considered Russia’s staunchest ally.

By Ben Aris in Berlin Incumbent Belarusian leader Alexander Lukashenko swept to a landslide victory in Sunday’s presidential election taking 86.82% of votes, according to preliminary results said the Central Election Commission Chairman Igor Karpenko at a press conference on January 26.