May Day marked by demonstrations around the world
Violence at rallies in Turkey, France, Philippines
Trade unions and other groups staged rallies around the world to mark International Workers Day, with some demonstrations marked by violence.
May Day marches in U.S. cities
Seattle police said they arrested nine people during anti-capitalist protests that injured five officers on May Day.
Authorities say eight males and one juvenile female were arrested Sunday evening. The charges included obstruction, assault and property destruction.
Police also said one officer suffered a head laceration after being struck by a rock, one was hit by a Molotv cocktail and hurt but not burned and another officer was bitten. Details on the other two injuries were not immediately available but Police Chief Kathleen O'Toole said there were no serious injuries.
The rowdy evening march followed a peaceful gathering in Seattle earlier by supporters of immigrants and workers.
Large May Day events also took place Sunday in Portland, Ore., and in California in Los Angeles, San Francisco and Oakland.
French organized labour, students demonstrate
Fearing France's worker protections are under threat, hundreds of angry youths on the sidelines of a May Day labour rally hurled stones and wood at police in Paris, receiving repeated bursts of tear gas in response.
Trade unions, teenagers, pensioners and families held largely peaceful marches Sunday in Paris and cities around the country. The traditional May Day rallies took on greater weight this year as parliament is debating a bill that would allow longer working hours and let companies lay workers off more easily.
The bill has prompted the most violent labour-related protests in a decade, with marches and sit-ins frequently degenerating into clashes with police.
Police encircled a few hundred suspected troublemakers on the sidelines of the Paris march Sunday, and frustrated youth threw projectiles. In Marseille, at least five people were arrested after scuffles with riot police. Marchers held banners calling President Francois Hollande a "traitor" and chanted "Everyone together!"
The Socialist government hopes the relatively modest labour reform will reduce chronically high unemployment and make France more globally competitive, by allowing companies more flexibility. Opponents say it erodes hard-fought worker protections and call it a gift to corporate interests.
Thousands rally in Istanbul, 1 dead
Thousands of Turkish demonstrators rallied for May Day in an authorized area of Istanbul while police cracked down on other protests.
Police used tear gas and water cannons on demonstrators trying to reach Taksim Square. One man died after being hit by a water cannon vehicle.
Taksim has symbolic meaning as the center of protests in which 34 people were killed on May Day in 1977.
The office of the governor of Istanbul said 24,500 security officers reported for duty Sunday, and that 207 people were detained.
Tensions are running high in Turkey after a string of deadly suicide bombings linked to either Kurdish or ISIS militants.
In the capital, Ankara, police rounded up four suspected ISIS members who were allegedly planning to attack May Day demonstrators.
May Day marches were held elsewhere in Turkey without incident but were cancelled in the southern city of Gaziantep after a deadly car bombing on a police station.
In the coastal city of Izmir, some demonstrators stripped down in protest over police body searches at a square where people were allowed to gather, according to local media.
May Day rallies across the Philippines
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. Labour leaders said 20 protesters were injured.
Some of the protesters managed to break through the police cordon. TV video showed some of them punching a retreating police officer and using wooden poles to hit a fire truck.
Police made no arrests and the protesters dispersed after about two hours.
May Day rallies were held across the Philippines, with campaigning entering the final week ahead of the May 9 presidential election. Some of the candidates pledged to address labour complaints.
"We'll see the real color and what will become to the sweet promises when one of them sits as president," left-wing labour leader Elmer Labog said.
Corbyn joins London rally
Labour Party leader Jeremy Corbyn joined thousands of people at a May Day rally in central London, using the occasion to condemn the progress of far-right groups throughout Europe.
Standing atop a red London bus, Corbyn said the party is united against the far-right and against racism.
"We stand in solidarity now against the growth of the far right in Europe," said Corbyn, whose faltering opposition party has been accused of anti-Semitism in recent days.
Brazil's Rousseff appears at May Day rally
Embattled Brazilian President Dilma Rousseff used a May Day appearance in Sao Paulo to rally support against efforts to impeach her.
The president announced to tens of thousands of backers that she will beef up a flagship social program, reduce the impact of income tax on the middle class and build another 25,000 new low-price homes.
A key vote on her impeachment proceedings is scheduled within two weeks in the Senate.