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.

South Korean authorities have extended the closure of a southwestern airport where a Jeju Air plane crashed and killed 179 people onboard, the land ministry said Monday. Authorities are still probing the cause of the accident on December 29,

A Jeju Air flight drove off the runway in South Korea and collided with a fence, leaving dozens of passengers dead, the Yonhap News Agency reported.