South Korea's government said on Monday it will extend the shutdown of Muan International Airport by a week to Jan. 14, citing the ongoing investigation into the crash of a Jeju Air jet that killed 179 passengers on board.

A plane carrying 181 people crashed at Muan International Airport in South Korea, killing at least 85 people, emergency officials said. "So far, two rescued and 85 dead," the National Fire Agency said in a statement,

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.