The London protest, known as the "Unite the Kingdom" march led by far-right activist Tommy Robinson, had an estimated attendance of between 110,000 and 150,000 people. The demonstration was one of the largest right-wing rallies in recent UK history. The Metropolitan Police reported this large number of participants and noted that the protest exceeded initial expectations. The event also saw some clashes with the police, resulting in injuries to 26 officers and 25 arrests.