Labour leader Ed Miliband has admitted that he sought the sacking of Gordon Brown's former aide Damian McBride, and that he raised his concerns at the time to Mr Brown.
He told the BBC's Andrew Marr Show that he was concerned about "indications that he [McBride] was briefing against colleagues".
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The father of Captain Khan, who died in Iraq in 2004, said the comment was "the most cruel thing you can say to grieving parents."
Little Sophia Williams died in a children's hospital in Edinburgh on June 5.
Dry spells over parts of Scotland in the next few days and remain dry. More rain in the north. Temperature will remain mild.