16 April 2014
Last updated at 13:43 ET
A major rescue effort has been launched after a passenger ferry capsized off the coast of South Korea on Wednesday.
Teams worked to pluck people from the ship as it listed and then sank, leaving only part of its hull exposed above the water.
Several South Korean coast guard, military and commercial vessels have been searching the area for passengers.
The ferry, bound for Jeju island, was carrying 462 people when it went down, South Korean officials said.
At least 174 people are reported to have been rescued so far but about 300 people remain missing, local media say.
Four people are confirmed to have died, with a number of others injured. Witnesses described passengers staggering after an apparent impact before the ship sank.
Doctors look after a young girl rescued from the ferry. One passenger said: "I heard a big thumping sound and the boat suddenly started to tilt."
Many of the traumatised passengers who were rescued were taken to a gym on the nearby island of Jindo.
Anxious parents and relatives of passengers are angry because they do not think they are being given enough information.
One survivor said that passengers were advised to stay still as the ship began to sink. "The announcement told us to stay still, but the ship was already sinking," he said.
Although rescue operations are ongoing through the night, divers have suspended attempts to find survivors inside the ship until daylight on Thursday.
Search teams are using flares to help with the rescue efforts but the darkness will undoubtedly complicate the operation.