Fifteen crew members from the sunken South Korean ferry are in court to enter pleas on charges that they were negligent and failed to save passengers in the disaster, which left more than 300 people dead or missing, the Associated Press reports.

Lawyers will also submit evidence during hearing Tuesday, June 10, at Gwangju District Court. Most of those killed in the April 16 sinking of the ferry Sewol were high school students, and many people from the students' hometown attended the hearing.

The captain and three other crew members are charged with homicide. Prosecutors accuse them of tacitly colluding to abandon the ship while being aware that passengers would be trapped and killed.

The other 11 crew members have been indicted on less serious charges.