South Korea Ferry: Video shows divers' underwater video
19 April 2014 Last updated at 09:05 BST
Divers have reported seeing three bodies in the South Korean ferry that sank on Saturday, but they said were not able to retrieve them.
The number of missing stands at 273 with 29 confirmed dead. Some 174 passengers were rescued.
Footage taken by divers as they searched for survivors has also been shown to relatives.
Jonathan Head reports.