This means that passengers boarding flights with devices that have no power could be forced to leave them behind. Enhanced security checks will be implemented at airports considered to be at risk.

Passengers flying directly to the US may be forced to switch on their mobile phones and other electronic devices to show security officials that they do not contain explosives.

Writing for The Sunday Telegraph, Tory MP Sir Hugo Rifkind warned against becoming complacent about threats, and said that terrorists possess ‘devilish technical skill’.

Speaking about the terrorists’ plans to disrupt air travel, Sir Rifkind revealed that they had “sophisticated means of concealing explosives in mobile devices, in clothing and in otherwise innocent objects.”

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