British student Scott Alexander said he was walking near the site of the London Bridge terror attack when he had to take cover.

"My friends were walking.. away from where it happened," Alexander said. "Suddenly, there was this gunfire behind us."

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Alexander said on "Fox & Friends" that he and his companions ran toward their residence, taking refuge in the courtyard.

A police officer came and ordered them to go inside.

"It was terrifying," Alexander said. "From my bedroom window I could see the corner of the street... there were 20 to 30 police cars crowding around."

He said he still feels safe in London, but was shocked to see an attack "20 to 30 meters from where I live."

Watch the clip above.

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