Airports facing chaos after US declares it wont allow uncharged cellphones or laptops onto flights bound for America... with iPhones and Galaxy's at top of the hit list

• The new directive by the TSA affects flights out of Africa, the Middle East and Europe
• The TSA has announced that devices that won't power up will not be allowed on planes
• Owners may have to undergo additional screening at security checkpoints
• American officials are concerned that al-Qaeda has produced new bombs
• iPhones and Galaxy phones are to be singled out for extra attention
• Airports facing chaos over busy holiday period as school's finish

The US has declared that it will not allow cellphones - especially iPhones and Samsung's Galaxy - onto US bound planes from some airports in Europe, the Middle East and Africa if the devices are not charged.

The new measure, which is bound to cause chaotic scenes at airports around the globe, is part of the US Transportation Security Administration's effort to boost surveillance amid concerns that terrorists are plotting to blow up an airliner.

As part of the increased scrutiny at certain airports, security agents may ask travelers to turn on their electronic devices at checkpoints and if they do not have power, the devices will not be allowed on planes, the TSA said.

+4

Increased vigilance: US intelligence officials are concerned that al-Qaida is trying to develop a new and improved bomb that could go undetected through airport security

No doubt the new measures have the potential to create frantic searches for chargers at airports and one US source familiar with the matter said laptop computers are also among the devices security screeners may also require passengers to turn on.

US officials are concerned that a cellphone, tablet, laptop or other electronic device could be used as a bomb by Yemen-based al Qaeda in the Arabian Peninsula and the Islamist Nusra Front, al Qaeda's affiliate in Syria.

The TSA did not disclose which airports would be conducting the additional screening, however it was reported last week that passengers at British airports traveling to the US are facing extra checks on phones.