From the BBC:
About 5,000 UK mainstream Muslims joined a protest in London's Trafalgar Square against controversial cartoons satirising the Prophet Muhammad.
There had been fears the rally may have been disrupted by extremists, but it proved to be a trouble-free afternoon.
Protesters waved banners calling for unity against Islamophobia.
The event aimed to explain the views of moderate Muslims towards cartoons published in a Danish newspaper which led to worldwide protests.
Organisers also said it wanted to dissociate the mainstream Muslim community from a "minority of extremists".
Earlier, organiser Anas Altikriti, of the Muslim Association of Britain, said he was confident the demonstration would not be taken over by extremists, adding that only the official slogan - United against incitement and united against Islamophobia - would appear on their T-shirts and placards.
Doctor Azam Tamimi, who is the director of the Institute of Islamic Political Thought, said before the rally he believed it would be peaceful.
"The main purpose of the rally today is to object to what has been going on in a civilised manner.
"We have the right to be angry, but we have to do it within the remits of the law, and we have to respect the rights of others," he said.
This was a peaceful British protest by peaceful Britons who happen to be Muslim, and was of immeasurable importance.
The people who want to instigate a clash between Muslims and non-Muslims in Europe are the likes of Nick Griffin of the BNP, and Osama bin Laden.
Both of these extremists wish to portray Islam and Western values as being fundamentally opposed. It is vital that the moderate majority continues to actively demonstrate that they are wrong.
It is also incumbent on mainstream media to put the views of the extremists in their proper perspective – a small band of evil people whose actions not only threaten the general public through their own acts of violence, but by turning public opinion against a minority group, could take us down the same road that the Germans followed in the 1930s.
We must not fall into the anti-Islamic trap.