The attack in London has been claimed by ISIS and is now officially considered a terrorist attack.
The British-born attacker plowed his car into a crowd of people on Westminster Bridge then ran towards Parliament and stabbed a man.
Armed police then shot and killed the attacker. 4 people are dead with 7 in critical condition and 29 others in the hospital.
Theresa May, the Prime Minister, revealed the attacker was known to the police and intelligence services.
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