A Muslim pressure group that campaigns for an Islamic state with sharia law is planning a demonstration outside the American embassy in London today.
It's in protest against a film, produced in the United States, which mocks the prophet Muhammad, portraying him as a womaniser, homosexual and madman.
Hizb ut-Tahrir, which has previously faced calls to be banned, said hundreds of Muslims from across the UK would rally and demonstrate "in solidarity" with others across the world.
They plan to converge outside the US embassy in Grosvenor Square at 2.30pm today.
A group statement said: "The demonstration will be condemning in the strongest possible terms any and all insults against Islam and the symbols of our religion; especially those against the greatest man sent to mankind the Prophet Mohammad, peace be upon him."