Liza Minnelli collapsed after finishing a song during a performance in Sweden, and she was seen by a doctor at her hotel and then flew Thursday to the United States for medical treatment, a concert organizers said.
Minnelli, 61, was performing in a Christmas show Wednesday in Goteborg, Sweden's second-biggest city, when she collapsed while walking offstage, said Zlakto Nedanovski, a spokesman for the concert organizers said.
"As she walked down the steps, she passed out," Nedanovski told The Associated Press, adding that she did not return for the rest of the show.
"She was taken immediately to her hotel, where a doctor was waiting," he said.
He said Minnelli was flown to the United States on Thursday on the advice of doctors there.
"They decided together with her management that it's best for Liza to go to the U.S. right away," Nedanovski said, adding that he did not know the medical diagnosis.
"She had felt a bit dizzy before she got up onstage," but decided to proceed with the show anyway, he said.
Minnelli's spokeswoman, Liz Rosenberg, confirmed the entertainer "had complained of dizziness" before the show and "became very ill after the show began."
"As a result, she was unable to finish her performance and was rushed back to her hotel by her manager," Rosenberg said.
She said a doctor examined Minnelli, and in consultation with her New York physician, determined that she needed "to immediately return to New York City to receive further medical evaluation."
In a separate statement, released by concert organizer Svensk Nojesutveckling, Minnelli's manager, Gary Labriola, said: "We don't yet know what happened, we are all very worried."
Minnelli was performing with several Swedish entertainers in a show called "A Classic Christmas Night." It was the fourth and final show in a series of four concerts in Sweden, Rosenberg said.
Minnelli, the daughter of Judy Garland, won an Oscar and a Golden Globe for her portrayal of Sally Bowles in the 1972 film "Cabaret." She won an Emmy for the 1972 TV special "Liza with a Z," and Tony Awards in 1974 and 1978.