Leyton Orient has launched a legal battle against the decision to make West Ham favourites to move into the Olympic Stadium.
The Hammers were named as the "preferential bidders" for the stadium in December, but Orient has asked permission for a judicial review of the process.
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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.