Thousands march in Moscow's Red Square for May Day rally
Communist leader Gennady Zyuganov told Russian news agencies ahead of the rally that he celebrates Easter despite the Communist party's history of oppressing the Russian Church.
Turkish police used tear gas and water cannons Sunday to disperse dozens of May Day demonstrators in Istanbul.
In the Istanbul districts of Sisli and Bakirkoy, police fired tear gas and water cannon to scatter other protesters.
The state-run news agency said police deployed to 15,000 officers and 120 water cannons in Istanbul, which has witnessed two suicide bombings this year.
May Day marches were held elsewhere in Turkey without incident but were cancelled in the southern city of Gaziantep after a car bomb attack on a police station.
In Manila, about 2,000 left-wing protesters scuffled with riot policemen, who used shields and a water cannon to try to prevent the flag-waving demonstrators from getting near the U.S. Embassy.
TV video showed some of them punching a retreating police officer and using wooden poles to hit a fire truck.