South Korean police have raided the headquarters of the transport ministry as questions mount over the authorities' handling of the country's deadliest aviation disaster.

Jeju Air Flight 2216 hit a concrete structure after overshooting the runway at Muan International Airport on 29 December 2024, killing all but two of 181 people on board.

Initial investigations found that the Boeing 737-800 had encountered a bird strike and that the concrete mound exacerbated the casualties.

The incident has since triggered multiple probes, with the latest one ordered by President Lee Jae Myung on Thursday after investigators recently discovered more body parts and victims' belongings.

On Friday police searched the ministry's office in the central city of Sejong for fresh leads on the cause of the crash and whether officials handled it properly, Yonhap news agency reported.