South Korea's transport ministry has extended special inspections of all 101 of the Boeing 737-800 jets run by the country's airlines by a week, after the worst aviation disaster on the country's soil,

South Korean officials are struggling to determine what caused a deadly plane crash that killed nearly 180 people on board, with the nation saddened, shocked and ashamed over the country’s worst aviation disaster in decades.

On Sunday morning, the commercial plane skidded off the runway, crashed into a wall and burst into flames while landing at Muan International Airport – killing all but two of its 181 passengers.