Officials said recent intelligence gave them reason to believe the Islamic State is developing a bomb that can be hidden in laptop computers.
“We have reason to be concerned about attempts by terrorist groups to circumvent aviation security and terrorist groups continue to target aviation interests,” the U.S. Department of Homeland Security said in a press release.
The American ban, developed by the Department of Homeland Security and the Transportation Security Administration, applies to 10 airports in eight Muslim-majority countries — Egypt, Jordan, Kuwait, Morocco, Saudi Arabia, Turkey, the UAE and Qatar.
The British ban applies to all inbound flights to the United Kingdom from six Muslim-majority countries: Turkey, Lebanon, Egypt, Saudi Arabia, Jordan and Tunisia.
David Schanzer, director of the Triangle Center on Terrorism and Homeland Security, said federal departments responsible for instituting the ban must have had a compelling reason to do it.
“I don’t think they would implement a new requirement unless they had credible evidence that some individuals or groups might be adopting this tactic,” he said.
Schanzer said it is possible for people to bypass the ban.