The massive security operation planned for Baroness Thatcher's funeral on Wednesday is already being put in place at St Paul's Cathedral.
Huge steel road and pedestrian barriers were among the materials transported to the site today, as construction workers began erecting a ring of security around the site
More than 2,000 politicians, dignitaries and celebrities are expected to head to the church from as early as 9am on Wednesday, ahead of the 11am service.
Downing Street has released a detailed Order of Service for Baroness Thatcher's funeral on Wednesday.
The full details of Baroness Thatcher's funeral have been released by Downing Street.
Baroness Thatcher's daughter Carol has spoken publicly to thank everyone who sent messages of sympathy and support.