The Queen, who has been suffering symptoms of gastroenteritis, will carry out her first public engagement in more than a week today when she joins the Duchess of Cambridge at an event celebrating the 150th anniversary of the Tube.
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The Westminster terror attack dominates the front pages of Thursday's newspapers.
A timeline of exactly what happened.
Tobias Ellwood, MP for Bournemouth East and Foreign Office Minister, attempted to save the life of the stabbed officer in Westminster.