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.

Police in South Korea have raided the airport of Muan following a deadly plane crash on site that killed almost all passengers aboard the aircraft last weekend, the Yonhap news agency reported Monday.

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

Relatives of the victims of a fatal plane fire in South Korea on Wednesday visited Muan airport, the site of the disaster. All but two of the 181 people aboard the Boeing 737-800 operated by South Korean budget airline Jeju Air died in Sunday's crash.

South Korea police on Thursday carried out a search and seizure operation at three locations, including Muan airport, Jeju Air office in Seoul, and a regional aviation office to ‘swiftly and rigorousl

South Korean police raided Jeju Air and the operator of the Muan airport as they ramped up their investigation into Sunday’s catastrophic plane crash that claimed 179 lives, marking the worst aviation disaster in the country’s recent history.

The plane skidded off a runway at Muan International Airport and caught fire after it crashed, a fire official said.

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.

Investigators plan to examine the tail and landing gear of the aircraft at the crash site of the passenger jet in Muan, Republic of Korea. They will also retrieve and analyze the flight data recorder of the plane,