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.

South Korea's rival parties agreed Tuesday to form a joint task force to probe the recent Jeju Air plane crash that left 179 people dead, as the transport minister offered to resign over the tragedy.With the exact cause of the crash still unknown,