An investigation into a fire that engulfed an Air Busan plane at a South Korean airport this week is being hampered by a large amount of fuel and oxygen still on board, an air crash investigation official told Reuters.

Concerns have been raised about the safety risk of bringing portable batteries in carry-on luggage for flights, as a lithium-ion battery is suspected as the cause of the fire that

South Korean officials are launching an investigation into the cause of the fire that engulfed an Air Busan passenger plane, with eyewitness accounts suggesting a power bank may have sparked the blaze.