Miles de personas en todo el mundo han celebrado el 1º de Mayo, Día Internacional de los Trabajadores
South Korean workers march during a May Day rally in downtown Seoul on May 1, 2012. About 4,000 members of civic and labour groups gathered to mark national Labour Day aimed at expressing the groups' discontent with policies of the conservative Lee Myung-Bak's government. AFP PHOTO / JUNG YEON-JE
Indonesian workers march towards the presidential palace during the May Day protests in Jakarta on May 1, 2012. Thousands of Indonesian workers held a peaceful rally in Jakarta on May 1 demanding better pay and a halt to outsourcing to contractors. AFP PHOTO / ADEK BERRY
Russian President Dmitry Medvedev (3rd L) talks with Prime Minister and President-elect Vladimir Putin (C) during a march to celebrate International Workers' Day, or Labour Day, in Moscow May 1, 2012. REUTERS/Alexsey Druginyn/RIA Novosti/Pool (RUSSIA - Tags: POLITICS BUSINESS EMPLOYMENT) THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS