Hong Kong expert says expansion of measure to other airlines will depend on further risk assessments by trade groups and carriers.

South Korea's Air Busan will not allow passengers to keep power banks in luggage stored in overhead cabin bins, in what on Tuesday it called a preemptive measure after one of its planes was engulfed in flames last week.

A South Korean airline no longer allows portable power banks in baggage stored in overhead bins, citing lithium-battery fire risk.

Air Busan will begin inspecting carry-on luggage for portable batteries before boarding, after a supplementary battery was suggested as the possible cause of a fire aboard one of its passenger jets at Gimhae International Airport on Jan.

An airline from South Korea is introducing a ban on carrying power banks in carry-on luggage. This is a consequence of a plane fire on the runway in January. Air Busan, a South Korean airline, has announced a ban on carrying power banks in carry-on luggage placed in the overhead bins.