Elephants perform during a May Day rally at the Royal Plaza in Bangkok. – Photo by Reuters.

Maoist activists and supporters, wearing Maoist headbands, attend an event to commemorate Labour Day in Kathmandu. – Photo by Reuters.

Protesters burn an effigy of President Benigno Aquino during a Labour Day march to press their demands for a 125 peso wage hike, during a protest outside the Presidential Palace. – Photo by Reuters.

Activists stand near a snail statue, with a sticker reading "I want social housing", as they take part in a May Day rally in Taipei. Hundreds of people took to the streets on Tuesday in the annual May Day (Labour Day) parade to demand more labour rights and higher pay. – Photo by Reuters.

Protesters act out a skit during a May Day rally in Taipei. Hundreds of people took to the streets on Tuesday in the annual May Day (Labour Day) parade to demand more labour rights and higher pay. The Chinese characters on the blue box read, "High housing price". – Photo by Reuters.

Indonesian workers display mock dead bodies representing the death of capitalism and imperialism during a rally to mark May Day in Jakarta, Indonesia, Tuesday, May 1, 2012. Thousands of Indonesian workers staged the rally demanding the government to raise minimum wage and reject outsourcing. – Photo by AP.

A Bangladeshi activist gestures during a procession to mark May Day or International Workers Day in Dhaka. – Photo by AFP.

Children look at Labour Day posters during an event commemorating Labour Day in Kathmandu. – Photo by Reuters.

A donkey pulls a cariage transporting goods in Kabul on May 1, 2012. The World Bank, one of the major international organisations that have financially supported Afghanistan in the last decade and committed to continue funding Afghanistan, will provide 150 million USD in grant annually to this country, even though rampant corruption has persisted since the last ten years. – Photo by AFP.

Laborers load bricks onto a truck at a brick factory on the outskirts of Jammu, India on May Day. – Photo by AP.