New Delhi (CNN) -- Indian authorities added murder charges Saturday for suspects in the brutal gang rape that led to the death of a 23-year-old woman and sent outraged protesters to the streets. The suspects already faced rape charges. Six people, including a minor and a bus driver, have been arrested in connection with the rape that occurred in New Delhi this month. Throngs of people have protested for days, demanding more protection for women and punishment for those behind the assault. The woman was airlifted to Singapore earlier this week after she was treated for injuries in a New Delhi hospital.
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Victim's body returned to India, cremated
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U.S. Embassy offers its condolences
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Gang rape of a 23-year-old in New Delhi galvanizes the nation
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Human Rights Watch says India has a widespread problem of sexual violence
Singapore doctors said she died "peacefully" early Saturday, surrounded by her family and @placeholder embassy officials.