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.

Fire breaks out on an Air Busan A321 bound for Hong Kong at Gimhae International Airport in Busan, South Korea. At around 10:30 p.m. on Tuesday, a fire broke out in the tail section of the aircraft. All 170 passengers and crew evacuated, and there were no casualties,… pic.twitter.com/GqzIkrUx85

An Airbus plane belonging to South Korean carrier Air Busan caught fire on Tuesday at Gimhae International Airport in the country's south while preparing for departure to Hong Kong, fire authorities said.