An image of a man wearing army fatigues and carrying two air rifles has been released by the Royal Canadian Mounted Police as they search for suspect Justin Bourque, after three officers were shot dead and two wounded in the Canadian city of Moncton, New Brunswick.
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The hotel chain said three of its properties - in Maidenhead, Brentford and Tottenham - have been investigated during a detailed assessment
In its first response since the 22-year-old's death, North Korea said Mr Warmbier was treated "according to international standards".
Police would face "real challenges" tackling a repeat of the London riots after years of cuts, one of Britain's most senior officers warns.