Belarusian leader Alexander Lukashenko was on track to extend his 31-year rule with 87.6% of the vote in a presidential election on Sunday, according to an exit poll broadcast on state TV, after hurling defiance at the West and defending the jailing of dissidents.

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.