A Palestinian who lost 11 members of his family in Israeli drone strikes wants to know if they were used as human shields.
Musheir El Farra from Sheffield told Good Morning Britain he wanted to know if his cousins were used to shield militants "when they were killed in their pyjamas?"
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The prime minister said there was a "clear and urgent imperative" to give new impetus to stalled negotiations.
Pollution claimed nine million lives in 2015, with air pollution from vehicles and factories accounting for 6.5m deaths, researchers found.
Donald Trump has given himself a "10 out of 10" for the response to the widespread hurricane devastation Puerto Rico suffered.