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.

The temporary closure of Muan Airport has been extended until January 14 as the investigation into the Jeju Air crash continues.

Authorities are still probing the cause of the accident on December 29, when Jeju Air flight 2216 from Thailand carrying 181 passengers and crew belly-landed in a South Korean airport and slammed into