South Korea will extend runway safety areas and redesign infrastructure after the crash of a Jeju Air Co. flight last month that killed almost everyone on board, sparking criticism that the the design of the airport might have exacerbated the accident.

The government on Wednesday announced a comprehensive plan to address potential risks associated with emergency landings at airports across the country following last month's deadly Jeju Air accident.

South Korean authorities said on Wednesday they will change the concrete barriers used for navigation at some airports across the country after the Jeju Air crash that left 179 people dead. South Korean and US investigators are still probing the cause of the crash,

South Korea's transport ministry has said that it would remove the concrete embankment installed at Muan International Airport following last month's Jeju Air crash, its deadliest domestic air disaster.

The nation’s transport ministry reviewed structures near airport runways after the deadly crash of a Jeju Air flight late last month.

The two black boxes on the Boeing jet involved in the worst aviation disaster on South Korean soil stopped recording about four minutes before the accident, the transport ministry said on Saturday. South Korean investigators previously said the flight data and cockpit voice recorders were key to finding out the cause of last month's crash that killed 179 people.

SEOUL (Reuters) - South Korea's transport ministry said on Monday it aims to change the structures of "localizer" antenna used to guide landings at airports this year.