BERLIN — Alice and Ellen Kessler, twin dancers and singers who launched their career in the 1950s and performed with Fred Astaire, Frank Sinatra and Harry Belafonte among others, have died, police in Germany said Tuesday. They were 89.

The death of the twins in Grünwald, a prosperous suburb of Munich where they shared a house, was reported by German newspaper Bild and news agency dpa on Monday, without named sources. Munich police on Tuesday confirmed the deaths, saying in an emailed statement that it was a “joint suicide.”

The Kessler twins learned to dance at a young age and joined the Leipzig Opera children’s ballet. In 1952, when they were 16, their family fled to West Germany, where they danced in a revue theater in Düsseldorf. In 1955, the sisters were discovered by the director of

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