Police on Friday raided Gimhae International Airport to secure evidence related to last week's fire in an Air Busan plane.

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.

SEOUL -- As authorities investigate last week's fire on an Air Busan plane, South Korean media reports suggest that the cause may have been a portable power bank or electronic device in an overhead bin, spurring calls to regulate where carry-ons can be placed.

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

Passengers evacuated from an Air Busan plane that was engulfed in flames this week at a South Korean airport will have their checked baggage returned to them, after authorities on Friday deemed the jet safe for a full investigation.

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.

An Air Busan plane caught fire at Gimhae International Airport in Busan in South Korea on Tuesday and all 169 passengers and seven crew members evacuated without casualties, Yonhap news agency reported,