A woman who plunged from the balcony of a Carnival cruise ship near Catalina Island had been arguing with her family just moments before jumping to her death, according to a source familiar with the case.

The FBI is still investigating the shocking incident, which happened early Monday morning aboard the Carnival Firenze ship.

The source told The California Post that the unidentified woman jumped from her stateroom balcony and plummeted to the deck below.

A woman who plunged from the balcony of a Carnival cruise ship near Catalina Island had been arguing with her family just moments before jumping to her death.…