The South Korean Coast Guard on Monday released footage from the early stages of its effort to save the ferry Sewol, and the video confirms just how quickly the captain abandoned ship.

About half a minute into the video (below), Lee Joon-seok climbs into the arms of orange-clad rescue workers whose boats had pulled alongside the tilting ferry. He left behind a ship of 469 others, only 174 of whom are confirmed alive after the ferry began to sink on April 16. Another 188 passengers—many of whom were students at a high school to the south of Seoul—are dead and 114 others are missing.

“I am really sorry and deeply ashamed,” Lee told reporters the day after the incident. “And I don’t know what to say.”

Government officials in the country are conducting a criminal inquiry into how the ship's crew handled itself as the vessel began to sink. It is illegal for a captain to abandon his or her ship in South Korea, and Lee has since been arrested, along with 14 other members of Sewol's crew. They are charged with causing death by abandoning ship.

South Korean President Park Geun-hye called the crew's actions "tantamount to murder," and the nation's prime minister resigned after the incident. Though executive authority in South Korea comes from the president's office, the New York Times reports that South Korea often fires prime ministers when the government feels the need to take responsibility for a catastrophe.

Despite the passenger death toll, 22 people from the 29-member crew are survived.