The Prime Minister said his "thoughts and prayers" are with MP Paul Goggins and his family after he collapsed during a run with his son.
David Cameron said: "My thoughts and prayers, like those of MPs across Parliament, are with Paul Goggins MP and his family following the sad news that he has been taken seriously ill."
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Labour is promising to reverse the Conservative policy of privatisation in the NHS which it claims is creating longer waiting times.
The Queen and senior members of the monarchy will attend services around the world to commemorate the centenary of the battle of Gallipoli.
The Liberal Democrats have proposed to invest an extra £10 million in mental health care for military personnel