BERLIN (AP) _ Famed conductor Daniel Barenboim was hospitalized shortly before he was to perform in a concert marking Mozart's 250th birthday, but doctors have found no cause for serious concern, a spokeswoman said Saturday.

The 63-year-old felt ill shortly before the concert Friday and went to a hospital on advice of his doctor, said Katharina Henschen, a spokeswoman for the Staatsoper opera house.

Henschen said Barenboim was under observation but ``nothing serious was found ... (and) anything serious can be ruled out for the moment.'' She gave no further details.

Barenboim is general music director of the Staatsoper and chief conductor of the Chicago Symphony Orchestra. Friday's performance went ahead without Barenboim, with Julien Salemkour conducting.

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