Two protests of note are taking place in London today;

A group protesting against the conflict in Syria will march down Oxford St from Marble Arch at 13:00.

The second group, Say No to Racism are marching from Portland Place on to Oxford St at 13:30.

Both groups will then merge Oxford Circus and will then march this route;

Oxford Circus
Regent St
Piccadilly
Haymarket
Trafalgar Square
Whitehall
Parliament Square