Conservative Party chairman Grant Shapps denied the Chancellor was exploiting the deaths of the six Philpott children for party-political advantage by linking them to the welfare debate.
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The 53-year-old was killed shortly after leaving her home in Mosta, Prime Minister Joseph Muscat said.
Jordi Sanchez of the Catalan National Assembly and Jordi Cuixart of the Omnium Cultural group were jailed on Monday.
Storm Ophelia continues to bring strong winds to western parts.