Following an interim investigation, South Korea's transport ministry revealed that the fire may have been sparked by a power bank, specifically a breakdown in the insulation inside the battery.

A portable power bank likely caused a fire that engulfed and destroyed a passenger plane in South Korea in January, according to local authorities. The Air Busan plane caught fire at Gimhae International Airport in the country's south on 28 January – causing three people on board to sustain minor injuries.