Passengers on flights into the UK from seven Middle Eastern countries are to be banned from taking large electronic devices like laptops and tablets in their hand luggage, ministers have announced.
The ban will affect flights arriving from all airports in Turkey, Lebanon, Jordan, Egypt, Tunisia and Saudi Arabia, and is expected to come into effect within days.
It will affect flights being operated by British carriers including British Airways and Easyjet, as well as foreign carriers like Turkish Airlines.
Prime Minister Theresa May took the decision after chairing a meeting on aviation security this morning.
A government spokesman said: "The safety and security of the travelling public is our highest priority. That is why we keep our aviation security under constant review and put in place measures we believe are necessary, effective and proportionate."
The new rules mean that any phones, laptops or tablets larger than a normal sized mobile or smart phone (length 16cm, width 9.3cm, depth 1.5cm) will not be allowed into plane cabins.
"The additional security measures may cause some disruption for passengers and flights, and we understand the frustration that will cause, but our top priority will always be to maintain the safety of British nationals," a government spokesman said.
"Decisions to make changes to our aviation security regime are never taken lightly. We will not hesitate to act in order to maintain the safety of the travelling public and we will work closely with our international partners to minimise any disruption these new measures may cause."
It comes after the US Department of Homeland Security instituted a similar ban earlier this week, although that ban covered a specific list of departure airports, rather than entire countries. In addition, it included flights arriving from Dubai and Qatar.
UK Carriers Affected by Ban
Foreign carriers affected by ban
Middle East Airlines