By Hyunjoo Jin and Hyunsu Yim SEOUL (Reuters) -South Korean police said on Thursday they had raided Jeju Air and the operator of Muan International Airport as part of their investigation into Sunday's crash that killed 179 people in the worst aviation disaster on the country's soil.

South Korea was set Friday to move the tail section of the Jeju Air plane that crashed last week, killing 179 people in the worst aviation disaster on its soil, officials said.The investigation is headed by South Korean air safety officials,

Jeju Air’s passenger plane smashed into a concrete wall after an emergency landing at Muan international airport in South Korea

Investigators assessing the survivability of a plane crash focus on five factors: integrity of the aircraft, effectiveness of safety restraints, G-forces experienced by passengers and crew, the environment inside the aircraft and postcrash factors such as fire or smoke.

Search operations at the site of the Jeju Air plane crash concluded on Saturday, one week after the devastating accident claimed 179 lives. Officials announced that all 179 bodies have been recovered,

The ruling People Power Party (PPP) and the main opposition Democratic Party formed a parliamentary task force Tuesday to investigate the fatal Jeju Air plane crash that killed 179 people. The 15-member task force,

An investigation team launched an in-depth examination of key components from the wreckage of the Jeju Air disaster, including the engines and cockpit panel, following efforts to recover victims' remains.