Baroness Thatcher's Funeral Procession Begins
With central London on lockdown ahead of her ceremonial funeral, the former prime minister starts her final journey.
Baroness Thatcher's coffin is being moved from Westminster as the funeral procession for one of Britain's most famous prime ministers begins.
The cortege left the Chapel of St Mary Undercroft in Westminster, where the coffin rested overnight, and is being transferred to another church on The Strand.
Once there, it will be transferred to a gun carriage and taken to St Paul's Cathedral for a ceremonial funeral service, which is being attended by the Queen.
Four thousand police officers are lining the route through central London amid heightened security following the Boston bombings on Monday.
Read more: news.sky.com