Ten people have been arrested during a demonstration outside a mosque in north-west London where an anti-Islamic protest was planned.
At least 1,000 people gathered outside Harrow Central Mosque as activists from Stop Islamification of Europe planned to demonstrate outside the mosque.
Unite Against Fascism were also present to "defend the mosque", they said.
Bricks, bottles and firecrackers were thrown at police officers who were present in riot gear at the scene.
Just after 2000 BST, police said there were a small number of people in the area. Mobile patrols were continuing in a bid to reassure residents.