Three people have been charged this morning after posting offensive comments on social media sites following the death of Drummer Lee Rigby. They are a 19-year-old man from Woking, a 28-year-old man from Woolwich and a 23-year-old woman from Southsea.
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Pictures of today's events unfolding following a major security incident at the Houses of Parliament.
At least two people have died after a knifeman brought terror to the heart of Westminster.
The Cobra committee brings together government ministers with senior officials of the emergency services and security agencies.