Armed police officers attend to the scene after a vehicle collided with pedestrians in the Finsbury Park neighborhood of North London, Britain June 19, 2017. [Photo/Agencies]

'DELIBERATELY SWERVED'

Miqdaad Versi, assistant secretary general of the Muslim Council of Britain, said the van had deliberately swerved into a group of people who were helping a man who was ill and had fallen to the ground.

"A number of passers-by, or friends, or people who had comeby from the mosque, were gathering around him to help take him to his family, take him to his house," Versi told Reuters.

"At that moment in time, basically a van swerved into them deliberately," he said, citing a witness at the scene.

He said the driver had run out of the van but a group of people caught him and held him until police arrived.

A Reuters witness saw at least one person being loaded into an ambulance. Armed police, ambulances and the fire service were in attendance.

The incident comes at a time of political turmoil in Britain, as Prime Minister Theresa May plunges into divorce talks with the European Union weakened by the loss of her parliamentary majority in a June 8 election.

It also follows a series of attacks, including thevan-and-knife attack on London Bridge on June 3.

On March 22, a man drove a rented car into pedestrians on Westminster Bridge in London and stabbed a policeman to death before being shot dead. His attack killed five people.

On May 22, a suicide bomber killed 22 people at a concert by American pop singer Ariana Grande in Manchester in northern England.

The Finsbury Park Mosque gained notoriety more than a decade ago for sermons by radical cleric Abu Hamza al-Masri, who was sentenced to life in a US prison in January 2015 for his conviction on terrorism-related charges.

A new board of trustees and management took over in February 2005, a year after Abu Hamza was arrested by British police,since when attendance has greatly increased among worshippers from various communities, according to the mosque's website.