UKIP leader Nigel Farage was forced to leave an Edinburgh pub under police escort after being surrounded by protesters.
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Carson Price was found unconscious on Friday evening in a park in Ystrad Mynach, near Caerphilly.
British Transport Police confirmed the trio have been charged with obstructing trains or carriages on the railway by an unlawful act.
Journalists who received the phones to review said the Galaxy Fold screen started flickering and turning black before fizzling out.