Credit: Frederick M. Brown/Getty Images

Actress Dixie Carter - best known for her role as Southerner Julia Sugarbaker on Designing Women - passed away Saturday morning. She was 70.

Her cause of death was not disclosed.

"This has been a terrible blow to our family," her rep Steve Rohrsaid said in a statement. "We would appreciate everyone understanding that this is a private family tragedy."

Carter - who also appeared on Broadway - earned an Emmy nod in 2007 for a guest role on ABC's Desperate Housewives.

She is survived by husband of 26 years, actor Hal Holbrook, and two daughters from a previous marriage.