One of the women met Mr. Kelly in a mall about 15 years ago, when she was in her early 20s, according to a court filing on Friday by Richard P. Donoghue, the United States attorney in Brooklyn. Mr. Kelly invited her to his recording studio in Chicago, where associates of his made a copy of her driver’s license, searched her suitcase and had her sign what she believed was a nondisclosure agreement.

She was taken to a locked bedroom, where she was kept for three days “without sustenance.” After a member of Mr. Kelly’s entourage finally gave her something to eat and drink, she became dizzy and tired. She woke up to find Mr. Kelly with her, Mr. Donoghue wrote, “in circumstances that made clear he had sexually assaulted her while she was unconscious.”

Another victim was 16 when Mr. Kelly, who was in his 40s at the time, began abusing her, Mr. Donoghue wrote. Mr. Kelly made her believe that if she did not obey him, “she or her family members would suffer serious harm.” And if she did not follow his sexual commands, she would be slapped, choked or locked in her room for days at a time without food.

One woman identified in the Brooklyn indictment as Jane Doe 5 appears to be Faith A. Rodgers, a Texas woman who has sued Mr. Kelly on charges of sexual battery, false imprisonment and knowingly infecting her with herpes without disclosing it. That suit remains unresolved.

Some of the new charges revolve around Mr. Kelly’s habit of making videotapes of his own sexual activities, some of which escaped his possession . When he realized that tapes involving underage girls could cause him trouble, he and his associates would scramble furiously to recover the videos that had gotten out, according to one of the indictments.

In 2001, he and his business manager, Derrel McDavid, started paying an acquaintance hundreds of thousands of dollars to track down and collect his tapes, the indictment said. Later, when that acquaintance planned a news conference to announce he had videos showing Mr. Kelly engaging in sexual activity with minors, Mr. Kelly, Mr. McDavid and others paid the person $170,000 to cancel it. They also agreed to pay one of the underage girls $350,000 to return tapes, but also had her take a polygraph test to affirm she was returning all the copies she had, according to the indictment.