South Korea plans to review the concrete walls positioned just beyond the end of some airport runways after an aircraft attempting an emergency landing smashed into one just over a week ago, killing almost everyone on board.

A plane carrying 181 people crashed while landing, killing most on board. Officials were investigating a possible malfunction with the landing gear and a bird strike.

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.

In his own words, a restaurant owner described recording videos of the Jeju Air plane crash as it happened. “Every time I closed my eyes, I kept seeing afterimages of the blast.”