South Korean investigators said Saturday they were close to finalising the transcript of the cockpit voice recorder from a fatal plane crash that left 179 people dead last week.

Officials are investigating the cause of the deadliest aircraft crash in South Korean history, which killed 179 people.

The flight, operated by Jeju Air, was landing when it went off the runway in Muan, in the country’s southwest. Only two people survived the crash.

Just two survivors were rescued from the wreckage of the passenger plane, which had been returning from Thailand.

Investigators from the NTSB and Boeing were expected to join the investigation into South Korea's deadliest air crash.

Acting South Korean President Choi Sang-mok has told emergency responders to use "all available" resources to respond to the crash.

A plane carrying 181 people crashed while landing, killing most on board. Officials were investigating a possible malfunction with the landing gear and a bird strike.

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. The closure of Muan International Airport has been extended until January 14,

After overcoming pariah status at the end of the last century, South Korea must learn what caused the catastrophe on Dec. 29 and what lessons to draw from it.