LONDON: Tens of thousands of people marched through central London Saturday to protest the far-right, six months after Britain saw one of its largest-ever far-right demonstrations and weeks ahead of key local elections.

Organized by hundreds of groups, including trade unions, anti-racism campaigners and Muslim representative bodies, the Together Alliance event was billed as the biggest march in UK history to counter the far right.

London’s Metropolitan Police said it was “hard to have an accurate estimate due to how far spread the crowds are” but provided a “rough estimate of around 50,000 people” in attendance.

Protesters carrying placards with slogans like “no to racism” and “you cannot divide us” marched from near Marble Arch to Whitehall near the UK parliament for a planned rally.

A separate pro-Palestinian march was set to converge with the main demonstration, which appeared to have attracted people of all ages from across Britain.