STOCKHOLM (Reuters) - Newly-elected Swedish Prime Minister Magdalena Andersson resigned on Wednesday just hours after she was appointed, when her coalition partner, the Greens, quit the government.

       "I have told the speaker that I wish to resign as prime minister," Andersson told reporters at a news conference.

       She said she was ready, however, to try again as leader of a single party government.

       (Reporting by Johan Ahlander)