Lady Thatcher: Protest takes over Trafalgar Square
Hundreds of people gathered in Trafalgar Square to protest against Baroness Thatcher's legacy on Saturday evening.
Members of the National Union of Mineworkers (NUM) and UK Uncut were among those who took part.
The Met said 16 people aged between 18 and 44 were arrested for offences including affray, being drunk and disorderly and assaulting police.