Riot police stand guard near Taksim Square to prevent protesters from defing a ban to celebrate May Day in Istanbul.
Indian workers and members of various trade unions dressed in red take part in a rally on International Workers' Day in Bangalore (AFP)
People hold red balloons during a May Day rally organised by the Ukrainian left-wing parties and the trade unions in Kiev on May 1, 2017.
Members of the Greek communist labour union (PAME) gesture as they demonstrate in central Athens during the May Day celebrations on May 1, 2017. Greek trade unions marked May Day on Monday with a 24-hour nationwide strike and protests against looming new cuts demanded by the country's creditors in return for bailout cash. Under pressure from its creditors -- the European Union, European Central Bank and the International Monetary Fund -- the government agreed to adopt another 3.6 billion euros ($3.8 billion) in cuts in 2019 and 2020. (AFP)
Riot police clash with protesters attempting to defy a ban and march on Taksim Square to celebrate May Day in Istanbul, on May 1, 2017.
Visitors pose for photos in Tiananmen Square on the May Day holiday in Beijing on May 1, 2017. (AFP)
An Indian labourer works at a brick factory near Allahabad on April 30, 2017, on the eve of International Labour Day. (AFP)
Pakistani labourer work at an iron factory on the eve of International Workers' Day in Lahore on April 29, 2017. (AFP)
A Sri Lankan porter carries goods at the main market in Colombo on April 30, 2017, on the eve of International Labour Day or May Day. (AFP)
A Pakistani labourer makes clay dishes at a factory in Karachi on April 30, 2017, ahead of International Labour day. (AFP)