Video posted on Twitter shows police storming into a London Bridge bar after a van driver ran over dozens of pedestrians in the area, prompting police to shut down the area.

Media reports have indicated that the event is considered to be a terrorist attack. Video posted by one patron shows officers streaming into the bar, screaming at patrons to get on the floor.

Patrons can be seen screaming and dropping to the floor in a panic as officers scream at them to get down and stay there.

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London bridge bar now. Police everywhere pic.twitter.com/0gWH9jhgdX — James Yates (@Yatesy17) June 3, 2017

London police have responded to two at least two other incidents in the area.

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