The Ministry of defence denied claims by the Taliban that insurgents shot the helicopter down, with initial investigations indicating a "tragic accident" rather than enemy action as the cause of the crash.
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Kouider collapsed in tears as the jury foreman returned the verdicts, while Medouni bowed his head.
The passenger jet was heading from Amsterdam to Kuala Lumpur when it was blown out of the sky over eastern Ukraine on July 17 2014.
The amendment on keeping the UK in some kind of Customs Union will be a key test of Theresa May’s fragile Parliamentary authority.