Australian actress Cate Blanchett is a new mother at 45 after adopting a baby girl, according to a report.

The Oscar winner and her husband Andrew Upton are already parents to three young sons, and now they are believed to have welcomed a daughter named Vivienne into the family.

Blanchett's representatives apparently confirmed the adoption news to The Australian Women's Weekly publication, and the actress was spotted cradling the baby at Sydney International Airport. Pictures show the Elizabeth star holding the little girl while chatting to an airline representative.

The couple is already parents to Dashiell, 13, Roman, 10, and Ignatius, six.

More: Dame Judi Dench | Judi Dench To Miss Oscars - Report ...

Daily Mail: Reports emerge Cate Blanchett has adopted a baby girl with ...