Opposition supporters in Belarus have held a mass rally in the capital Minsk, two weeks after a disputed election gave President Alexander Lukashenko another term in office. Tens of thousands filled the central square despite heavy police presence. The protesters say Mr Lukashenko stole the election and want him to resign. The president has vowed to crush the ongoing unrest and previously blamed the dissent on unnamed "foreign-backed revolutionaries". Recent protests were met with a crackdown in which at least four people were killed. Demonstrators said they had been tortured in prisons. According to official results, Mr Lukashenko - who has ruled Belarus for 26 years - won more than 80% of the vote in the 9 August election and opposition leader Svetlana Tikhanovskaya 10%. There were no independent observers and the opposition alleges massive vote rigging. Ms Tikhanovskaya, who was forced to flee to neighbouring Lithuania the day after the election, vo