CHICAGO (CBS) — A man plunged to his death from the 10th floor of the luxury condo tower at 30 E. Huron St.

Around 7:05 a.m. Thursday, the man plunged from the 10th floor of the 56-story building, and landed in an alley.

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The 57-year-old man, a resident of the building, was pronounced dead on the scene at 8:50 a.m., according to the Cook County Medical Examiner’s office. His name was being withheld pending notification of family.

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It was not clear whether the man fell or jumped.

Area Central detectives are conducting a death investigation.

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The Sun-Times Media Wire contributed to this report.