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A police forensics officer stands next to a van believed to be involved in an incident near Finsbury Park Mosque in which the van plowed into pedestrians, on June 19, 2017 in London, England.
A police forensics officer stands next to a van believed to be involved in an incident near Finsbury Park Mosque in which the van plowed into pedestrians, on June 19, 2017 in London, England.

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    Video appears to show man detained

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Video appears to show man detained

Video and pictures provided to CNN by witnesses on the scene show a man being detained and then later arrested by a police. London police have not yet released an image of the person they have arrested.

Video appears to show man detained

Video and pictures provided to CNN by witnesses on the scene show a man being detained and then later arrested by a police. London police have not yet released an image of the person they have arrested.