Up to 40,000 people have taken part in events in London to mark the annual May Day workers' march.
Up to 40,000 people filled Trafalgar Square
The celebrations ended with a music festival and speeches in Trafalgar Square.
Rock singer Pete Doherty performed on the stage, which had also seen speeches from former Labour MP Tony Benn, and Mayor of London Ken Livingstone.
The march had set off from Clerkenwell Green for the square at 1300 BST.
Doherty's acoustic set, played under the banner "Unite Against Fascism", followed performances by stars including R&B singer Estelle and soul singer Terri Walker.
It is one of the first public appearances the singer has made since charges of robbery and blackmail against him were dropped.
The musicians performed between speeches from campaigners and union officials.
Police officers were assigned to provide cover in London for any unexpected protests.
In 2000, anarchists ran riot and defaced the Cenotaph in Whitehall in protests which took place at the same time as the TUC march.
But in recent years there has been little trouble.
TUC spokesman Laurie Helselden said: "We organise our march extremely well. We work very well with the police so violence has nothing to do with the traditions of May Day and it has never occurred on the May Day march itself.
"Our major concern is that vandalism has no part in the politics but the problem is when the vandalism occurs not just in the march but in London itself, it masks our core messages."
The issues covered throughout the day included international solidarity, peace, respect for all, employment and trade union rights and public services.