COSTELLO: The investigation into the deadly ferry disaster in South Korea is widening. Three members of the South Korean Shipping Association have been arrested. They're suspected of destroying evidence connected to that sinking ferry. Also this morning, the Coast Guard has released new video of the ship sinking and the passengers being rescued. Just as prosecutors start to investigate whether the agency failed to adequately do its job. Nic Robertson has more on the widening investigation.</s>NIC ROBERTSON, CNN SENIOR INTERNATIONAL CORRESPONDENT: Well the prosecutors here say they have arrested another three people. They worked they say for the Korean Shipping Association, an association that takes care of the interest of Korean shippers. They accuse these three people of destroying documents relating to the company that owns the Sewol Ferry. Not clear what those documents are. Another indication of the broadening investigation, investigators say they are looking at and investigating the 911 service locally in this area to see how they handled the disaster when it began happening; also investigating the local Coast Guard to see how they responded. Now we did hear from Coast Guard officials earlier in the day and they described how they rescued the captain. The Coast Guard also released video of that -- of that rescue of the captain. The captain was clambering out of the ship in his underwear. Something that's shocking South Koreans to see the captain coming out this way and the Coast Guard say they had no idea that this was the captain. They say many of the crew were wearing life vests but they couldn't tell whether or not they were passengers or crew because the life vests were covering their uniform. But they say they had no idea that the man in the shorts that they were rescuing was the captain. They say they knew there were 400 to 500 passengers aboard the ship and assumed other people were helping get them off. So the Coast Guard, the 911 service under scrutiny of investigators now as well. Nic Robertson, CNN, Jindo, South Korea.</s>COSTELLO: The next hour of NEWSROOM after a break.
Three More Arrested on South Korea Sewol Ferry