Indonesian rescuers were searching for 29 people who remained missing Thursday after a ferry sank and six people died the previous night near Indonesia’s resort island of Bali.

The ship was carrying 65 people when it sank on its way to the Indonesian resort island, a popular tourist destination.

Twenty-nine people remain missing after a ferry sank in the Bali Strait on Wednesday evening. Six people have been confirmed killed and 30 rescued, but further search efforts have been delayed by rough seas.