The U.S. on Wednesday ended a four-month ban on laptops and other large electronic devices in the cabins of U.S.-bound flights from certain airports in the Middle East and Northern Africa.

The ban was initiated in March after U.S. officials cited intelligence that terrorists were potentially working on concealing explosives in laptops and other larger devices commonly carried onboard aircraft.

The ban affected nine airlines that fly direct from the Middle East and Northern Africa to the U.S. – Emirates, Etihad Airways, Qatar Airways, Turkish Airlines, Saudi Arabian Airlines, Royal Jordanian, Kuwait Airways, EgyptAir and Royal Air Maroc.

The U.S. had been considering expanding the laptop ban to inbound flights from Europe as well, but in June settled for enhanced security and screening measures for all commercial flights to the U.S. Earlier this week, U.S. officials clarified that new security requirements include enhanced passenger screening at foreign airports, increased security protocols around aircraft and in passenger waiting areas, and expanded canine screening.