A Los Angeles court  named the daughter of longtime radio personality Casey Kasem his temporary conservator even though the whereabouts of the ailing DJ were unknown, the attorney for daughter Kerri Kasem said on Monday.

The ruling marks the latest bitter legal tussle between Kasem's children and their stepmother, Jean Kasem, over visitation and caretaking for the 82-year-old DJ most famous for his weekly top 40 countdown show.

Los Angeles Country Superior Court Judge Daniel Murphy ordered Kasem's whereabouts to be disclosed after Jean Kasem's attorney said he had been taken out of the country, according to City News Service.

Kerri Kasem's attorney Troy Martin said he believed Kasem was in or was returning to the United States.

"We were informed by a relative of Jean that she was making arrangements to take Casey to an Indian reservation in Washington state," Martin said.

Jean Kasem's attorney, Craig Marcus, declined to comment.

Kerri Kasem said in court documents that she and her sister were able to find and visit their father, who suffers from a form of dementia called Lewy Body Disease, at a convalescent hospital in Santa Monica, California, last week, according to City News.