A British security source has told Reuters news agency that early indications do not suggest that the plane is the subject of a terror attack.
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In Berwick-upon-Tweed - the town at the northern-most tip of England - history has taught them that no border necessarily lasts forever.
His car was about to get towed away. But he had other ideas.
Our experts take a look at the key issues that would face Scotland and the rest of the UK if Scots vote for independence.