Police have arrested 466 people in central London on Saturday for protesting the British government’s decision to ban the pro-Palestinian activist group Palestine Action under anti-terrorism laws.

The Metropolitan Police said the number of arrests was the largest made by the force on a single day in the last decade.

The Metropolitan Police arrested 474 people during London’s largest protest supporting banned group Palestine Action. Most were detained under terrorism laws, sparking criticism from rights groups who called the crackdown disproportionate.