Police on scene after a vehicle plowed into pedestrians on Seven Sisters Road in Finsbury Park, North London.
The police said they were called after reports of a collision on Seven Sisters Road, which runs through the Finsbury Park area of the city.
Vanzella said she went to the window and saw "loads of people gathering" in a corner across the road from her window.
Officers were called at 00.20 BST and remain at the scene, the Metropolitan Police said, describing it as a "major incident".
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A white van plowed into at least 10 pedestrians outside Finsbury Park Mosque in north London. A number of police and ambulances were in attendance. "I just hope they did".
Transportation officials said roads were being closed in the area.
"They were very nervous, shouting very loud, trying desperately to make some signs to a police auto that was just passing the road", she told CNN.
Early this month, a van crossing London Bridge veered into pedestrians. Eight people were killed and dozens were wounded before police fatally shot the three attackers.