Paris: Under the close watch of French police, thousands of protesters in Paris danced, picnicked and railed against President Emmanuel Macron at a "party" marking his first year in office.

Police fired tear gas on troublemakers on the margins of the largely festive protest on Saturday. Authorities deployed 2,000 police to the event after violence and ransacking scarred a May Day protest in the French capital earlier this week.

"Stop Macron!" read placards at Saturday's rally in front of Paris' famed Opera Garnier. Demonstrators then marched through tourist-filled neighborhoods toward the Bastille plaza in eastern Paris.

Organisers of Saturday's march, the far-left party Defiant France, planned the event around the one-year anniversary of Macron's May 7, 2017 election. He was inaugurated a week later, and quickly launched broad changes to France's labor rules to increase the nation's global competitiveness.

Protesters are angry at reforms led by Macron, a centrist former investment banker, such as cutting some worker protections and increasing police powers.