Preliminary information indicates a “barge struck a sailing vessel carrying six people” near Habicus Island, Florida officials said.

Disturbing new video shows the horrific moment a barge crashed into a sailboat off the coast of Florida, killing two young girls and critically injuring two others. Surveillance footage shared by NBC Miami shows the barge slamming into the sailboat that was carrying a 19-year-old instructor and five kids as part of a sailing summer camp on Biscayne Bay near Miami Beach on Monday.