Poland's President Lech Kaczynski was hospitalized early Monday for tests.
Kaczynski was taken to the hospital "in connection with a worsening of his health," presidential spokesman Marcin Rosolowski was quoted as saying by the news agency PAP.
Wojciech Lubinski, a spokesman for the Defense Ministry hospital, where Kaczynski was taken, said the president was suffering from a high fever and weakness.
The presidential office said more details would be made available after Kaczynski's release.
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