Muan, who was visited by mourners...The investigation into the cause is also "speed."

[Anchor]
It's been a week since the Jeju Air passenger plane disaster killed so many lives.

On the last day of the national mourning period, mourners continue to visit Muan International Airport.

With the search for belongings and remains nearing the end, the work to determine the cause of the disaster is also accelerating.

I'm connecting the reporter who is on the scene. Reporter Kim Geunwoo!

[Reporter]
Yes, it's at Muan International Airport.

[Anchor]
A week has already passed, how is the atmosphere at the memorial altar?

[Reporter]
Yes, it is the last day of the national mourning period, but there are constant steps to remember the victims.

You can still see the harmony behind me and at the entrance of the airport.

According to the policy of the bereaved family, the memorial altar cannot be shown, but many mourners are also coming inside.

The government-designated national mourning period ends at midnight today.

Most of the joint memorials are also open until today, but some local governments have decided to extend their operations.

The joint memorial altar at the site of the disaster and Muan Sports Park will be open until the 15th of next month in line with the 49th of the victims.

The Seoul Metropolitan Government and Osan City in Gyeonggi Province have also decided to extend the operation period of the memorial altar until the 10th.

As the delivery of the body continues, funeral procedures are underway.

So far today, more than 70 bodies of 179 victims have been delivered to bereaved families.

The accident management headquarters expects to be able to deliver all the victims' bodies from around 5 p.m. today.

Accordingly, the funeral procedures are expected to be completed by next week.

[Anchor]
There's also an investigation to find out the cause of the disaster, right?

[Reporter]
Yes, the accident investigation headquarters lifted the tail wing of the plane for the first time yesterday (3rd).

The tail wing, which is still in shape, was lifted with a crane to collect the remains and belongings that would be underneath.

When the tail wing part is repaired, most of the probationary work is expected to be completed.

In addition to the delivery of the body, the investigation into the cause of the accident is expected to accelerate.

The investigation headquarters conducted a night search yesterday, and is conducting a final search today.

In particular, attention is being paid to whether the engine and landing gear raised with the tail wings will reveal the cause of the disaster.

We are also looking at the concrete material localizer hill where the aircraft crashed.

Currently, a 23-member South Korea-U.S. joint investigation team has been formed, including Boeing, an aircraft manufacturer.

The black box, an important clue, is first investigating the voice recorder to understand the communication between the pilot and the controller.

The flight recorder, which is difficult to extract data due to the loss of the connector, will be sent to the United States soon for investigation.

I'm Kim Geunwoo from YTN at Muan International Airport.

Reporter for filming
: Jeon Dae-woong