LOS ANGELES (CBSLA) — Starting Tuesday, passengers on flights from eight Middle Eastern and North African countries are not allowed to carry electronics bigger than a phone in their carry-on luggage on non-stop flights to the U.S., an America official told CBS News.

That means devices like laptops, iPads and cameras must be checked.

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Airlines that fly to Los Angeles International Airport non-stop from the following eight countries include Qatar Airways, Saudi Arabian Airlines, Turkish Airlines and Emirates Airline.

(credit: CBS)

“There are probably more flights coming from Middle East to New York and L.A. than any other airport. we could see somewhere between three and seven a day that are affected by this ban,” said Skift airline business reporter Brian Sumers.

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He expects plenty of travelers to be shocked and confused as the new rules are implemented.

The news broke after Royal Jordanian Airlines posted a tweet informing travelers of the changes, but later deleted the tweet.

Officials say the rule is from intelligence developed overseas, but there’s no specific plot.

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Homeland Security Secretary John Kelly phoned lawmakers over the weekend to brief them on aviation security issues that have prompted the electronics ban, according a congressional aide briefed on the discussion.