The funeral route will start at the Palace Westminster before taken up Whitehall, past Trafalgar Square and to the church of St Clement Danes in the Strand.
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Rain will spread eastwards across southern areas tonight. Clear and frosty in the north.
Political leaders will go head-to-head at ITV's studios in MediaCityUK in Salford, ITV has confirmed, as the set for the event is unveiled.
More than 100 people claiming to represent working people across Britain have signed a letter backing Labour in the general election.