Korea's national airline, Korean Air, has forbidden the use of Apple and Dell laptops during flights in response to the recent battery recall by both firms.
The ban came into effect on 30 August and is designed to protect passengers from any accidental fires.
Apple and Dell have both issued battery recalls in connection with a large batch (6 million) of potentially faulty Sony battery cores.
Passengers are still allowed to carry the computers on board, but must take the batteries out and put them in their checked-in baggage.
The Washington Post claims that US airlines may follow suit.
An Apple spokesperson in Korea called the move "an over-reaction", The Korea Times claims.