A British man and his fiance have died off the coast of Italy, they are believed to have drowned.
A Foreign Office spokesperson confirmed the death of the man who is believed to have been on holiday.
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In a wide-ranging Peston on Sunday interview, he said Parliament security needs reviewing and the PM's counter-terror strategy is flawed.
The star celebrated his 70th birthday with his family before attending a celebrity-filled bash held in his honour.
Douglas Carswell told ITV's Peston On Sunday he wanted to "support" the government as a "critical friend" but refused to rule out a return.