However, a small opposing group of Muslims – some of whom had travelled hundreds of miles to rebut the extremists – staged a counter-demonstration nearby, holding up placards reading “Muslims Against Extremism” and “If You Want Sharia, Move To Saudi”.
Abdul Sallam, 41, who was waving a sign that read “Keep The Silence”, travelled down to London from his home in Glasgow to show the strength of his feelings.
He said: “I’m a Muslim. What they’re doing is bringing shame on all Muslims. This is not part of the teachings of Islam.
“Islam teaches you that when you see anything bad or evil, you should speak out against it.
“If the moderate Muslims all came out and spoke out, that would defeat them.
“I am proud to be British. I love my country. All these people are doing is breaking Britain apart.”
One of the Grosvenor Square memorial service attendees, who did not want to be named, said the protesters should be stopped from standing just across the road from the embassy and using a loud megaphone.
The man, whose cousin died in the terror attacks, said: “They shouldn’t be allowed to do it. It’s very disrespectful. It’s too loud.”
He added: “They can say what they want but not with the loudspeaker.”