Terror witness 'saw blood everywhere'
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London attack: Eyewitness describes terror scene aftermath

A man who witnessed the aftermath of the terrorist attack near the UK's Houses of Parliament broadcast his thoughts on Facebook.

Four people, including an armed police officer and a man believed to be the attacker, have died.

Martin Pearce, 34, from Norwich, crossed Westminster Bridge as events were unfolding and said he could see "blood everywhere".

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