This was the moment stunned MPs were ordered to stay inside the House of Commons amid a terror attack in Westminster.
Deputy Speaker Lindsay Hoyle suspended the sitting of the House and told MPs: "This House is now suspended but please wait here."
The main doors into were shut as MPs sat on the benches and checked their phones while others stood in groups and spoke to each other, witnesses said.
It came as panic was sparked when a 4x4 mowed down pedestrians and a police officer was stabbed outside the Houses of Parliament.
Labour's David Winnick raised a point of order to try to seek clarity.
He said: "Something serious has apparently happened. Could we know if we were to have a statement either from the leader of the House or the Home Secretary?"
Mr Hoyle replied: "It's not the time or appropriate to this moment until I have got further information.
"What I would say is the House is suspended. I want members to stay in here until we know where we are.
Attack at Parliament, March 22, 2017
"It's far too serious to get into a debate. We can worry about that later."
Scotland Yard confirmed it was dealing with a terror incident and said officers were called at 2.40pm.
Up to a dozen people were injured after a car mowed down pedestrians along the length of Westminster Bridge.
A man was seen receiving medical attention outside Westminster Hall after a 4x4 vehicle ploughed into railings nearby.
At least four shots were reportedly heard after a vehicle ploughed into pedestrians on Westminster Bridge.
The Prime Minister, who had been in PMQs, was in the division lobby when she was alerted and bundled into a car.
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