04/28/2014 09:20 EDT | Updated 06/28/2014 05:59 EDT

South Korea ferry video shows captain boarding boat

The South Korean Coast Guard has released video footage showing the captain and crew of the capsized Sewol ferry boarding lifeboats as the ferry sank.

More than 300 people, most of them high school students, were left dead or missing after the sinking.

Watch the coast guard video in the player above.