Following Thursday's police action, "security at all UK airports has been increased and additional security measures have been put in place for all flights, report the BBC.
The Department of Transport has issued new guidelines for everyone travelling from UK airports, effective immediately.
All luggage must be put in the hold and no hand luggage is allowed except for a single transparent carrier bag which can only contain the following items:
Pocket-size wallets and pocket-size purses plus contents (for example money, credit cards, identity cards etc (not handbags)
Travel documents essential for the journey (for example passports and travel tickets)
Prescription medicines and medical items sufficient and essential for the flight (eg, diabetic kit), except in liquid form unless verified as authentic
Spectacles and sunglasses, without cases
Contact lens holders, without bottles of solution
For those travelling with an infant: baby food, milk (the contents of each bottle must be tasted by the accompanying passenger) and sanitary items sufficient and essential for the flight (nappies, wipes, creams and nappy disposal bags)
Female sanitary items sufficient and essential for the flight, if unboxed (eg tampons, pads, towels and wipes)
Tissues (unboxed) and/or handkerchiefs
Keys (but no electrical key fobs). All passengers must be hand searched, and their footwear and all the items they are carrying must be X-ray screened.
In addition, "Pushchairs and walking aids must be X-ray screened, and only airport-provided wheelchairs may pass through the screening point and "any liquids discovered must be removed from the passenger".
So, no food, drinks, books, magazines, iPods or laptops.
These measures mean that delays are inevitable. If you're travelling remember to check that your flight is still scheduled by contacting the airline. The BBC is keeping their At-a-glance: UK Airports page up to date and you can access information for various UK airports from there.