Police shoot knife attacker outside UK parliament, people rammed with car – Live updates

‘A knife attacker has been shot after a car mowed down pedestrians on Westminster Bridge and charged the gates of parliament, in what police are treating as a terrorist incident.
Police are treating the incident as terrorism
Downing Street says May will chair a COBRA emergency meeting tonight after the attack on UK parliament
What we know
A woman is dead and others have “catastrophic” injuries
Several people have been injured after a car reportedly mounted the pavement on Westminster Bridge and “tried to mow people down”
A woman was treated after “falling” from bridge into the River Thames
A police officer was stabbed inside Parliament grounds. The officer’s condition is not known
Alleged assailant shot by armed police. The condition of the alleged attacker is not known
British police say there are a number of casualties, including officers’
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