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US Capitol shooting: 'They told us to hit the floor so we did'

28 March 2016 Last updated at 21:30 BST

A man who was in the US Capitol building's visitor centre when shots were fired has described the moment they were told to get down.

He said police immediately "told us to hit the floor, so we did". He remained on the ground for 20 minutes until he was given the all clear.