UPDATED: Prince’s sister, Tyka Nelson, said the music icon had no known will and asked a Minneapolis court on Tuesday to appoint a special administrator to oversee his estate, the Associated Press reports.

Nelson — Prince’s only surviving full sibling — filed an emergency motion for “formal appointment of special administrator” at a Carver County probate court in Minneapolis, essentially asking to be appointed executor of his estate.

“I do not know of the existence of a will and have no reason to believe that the decedent executed testamentary documents in any form,” Nelson said in the docs.

She listed John Nelson (Prince’s half brother), Norrine Nelson (half sister), Sharon Nelson (half sister), Alfred Jackson (half brother), Omar Baker (half brother) and Lorna Nelson (deceased half sister) as potential heirs, who could possibly inherit a small fortune. The filing also states that his assets are unknown, although his estate included about $27 million in property.

The documents ask that Bremer Trust, a corporate trust company that has handled Prince’s financial affairs for several years, be named temporary administrator of the estate until a representative is appointed.

Prince died in his Minneapolis home recording studio on Thursday at age 57. His autopsy was completed on Friday, but a cause of death has yet to be released.