Prince's Sister Says He Had No Will

(MINNEAPOLIS) — Prince's sister says the superstar musician had no known will and she's filed paperwork asking a Minneapolis court appoint a special administrator to oversee his estate.

Tyka Nelson filed the paperwork Tuesday in Carver County probate court. Prince died at age 57 on Thursday at his estate in suburban Minneapolis. No cause of death has yet been released.

Nelson is his only surviving full sibling.