One person has been killed and 10 others injured after a van stormed into Muslim worshippers near a mosque as the driver screamed: “I’m going to kill all Muslims”.

The van driver was detained by members of the public after the attack in Finsbury Park early on Monday.

Amber Rudd, the Home Secretary, said police are treating the incident as a terrorist attack. Sadiq Khan, the mayor of London, described the incident as a “horrific terrorist attack”.

The van was rammed into pedestrians as the area was filled with worshippers attending Ramadan night prayers in Seven Sisters Road at 12.20am.

A 48-year-old man has been arrested and the police said the investigation is being carried out by the Counter Terrorism Command.

The Muslim Council of Britain has described the attack as “the most violent manifestation” of Islamophobia, and called for extra security around mosques.

Harun Khan, the council’s secretary general said authorities should step up security “as a matter of urgency”.

“According to eyewitness accounts and videos taken after the incident, it appears that a white man in a van intentionally ploughed into a group of worshippers who were already tending to someone who had been taken ill,” he said.

“We do not know how many were injured or killed, but our prayers are with the victims and families.”