A woman lays flowers near the scene where a van <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2017%2F06%2F18%2Feurope%2Furgent---london-vehicle-collision%2Findex.html" target="_blank">plowed into a crowd of pedestrians in north London</a> on Monday, June 19. A man was arrested, police said, and is being held on suspicion of terrorism offenses. The attack happened near a mosque, and British Prime Minister Theresa May said it was directed at Muslims.
A woman lays flowers near the scene where a van plowed into a crowd of pedestrians in north London on Monday, June 19. A man was arrested, police said, and is being held on suspicion of terrorism offenses. The attack happened near a mosque, and British Prime Minister Theresa May said it was directed at Muslims.
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Police officers stand at a cordon near the scene. The incident happened on Seven Sisters Road, a busy thoroughfare in Finsbury Park.
Police officers stand at a cordon near the scene. The incident happened on Seven Sisters Road, a busy thoroughfare in Finsbury Park.
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Forensics officers work at the scene.
Forensics officers work at the scene.
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Pedestrians watch investigators at work.
Pedestrians watch investigators at work.
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A forensics officer examines the interior of a van.
A forensics officer examines the interior of a van.
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Area residents react at the scene.
Area residents react at the scene.
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A forensics officer stands next to a van near the Finsbury Park Mosque.
A forensics officer stands next to a van near the Finsbury Park Mosque.
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Investigators work at the scene.
Investigators work at the scene.
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Police guard a street in the Finsbury Park area.
Police guard a street in the Finsbury Park area.
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Police officers gather near a van on Whadcoat Road.
Police officers gather near a van on Whadcoat Road.
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Locals pray near the mosque.
Locals pray near the mosque.
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A police officer at the scene of the incident.
A police officer at the scene of the incident.
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Police help a woman at the scene.
Police help a woman at the scene.
Courtesy Cynthia Vanzella
London's Metropolitan Police said officers were called just after midnight.
London's Metropolitan Police said officers were called just after midnight.
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Police and ambulance crews gather at the scene.
Police and ambulance crews gather at the scene.
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Injured pedestrians are treated by emergency workers.
Injured pedestrians are treated by emergency workers.
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"People were shouting, 'This is an act of terrorism!'" witness Hillary Briffa said.<br />
"People were shouting, 'This is an act of terrorism!'" witness Hillary Briffa said.
Courtesy Cynthia Vanzella
Resident Cynthia Vanzella said she was in bed when she heard people shouting. She went to the window and saw "loads of people gathering" in a corner across the road.
Resident Cynthia Vanzella said she was in bed when she heard people shouting. She went to the window and saw "loads of people gathering" in a corner across the road.
Courtesy Cynthia Vanzella
Police officers stand guard.
Police officers stand guard.
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Emergency crews move one of the injured.
Emergency crews move one of the injured.
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Peter Bergen, CNN's national security analyst, said the neighborhood has a large Muslim population and that the nearby mosque used to be a place where Islamist militants gathered.
Peter Bergen, CNN's national security analyst, said the neighborhood has a large Muslim population and that the nearby mosque used to be a place where Islamist militants gathered.
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