Updated

A spokesman for boxing great Muhammad Ali says the former heavyweight champion is being treated in a hospital for a respiratory issue.

Spokesman Bob Gunnell said Thursday that Ali is being treated by doctors as a precaution. He says that the 74-year-old is in fair condition, and that a brief hospital stay is expected.

He declined to say where Ali is hospitalized or when he was admitted.

Ali has battled Parkinson's disease for years.