Emergency crews pulled a man from Lake Michigan east of Oak Street Beach after he fell off a boat this afternoon, officials said.

The man, age 30, was taken to Northwestern Memorial Hospital in "very critical" condition after being pulled from the water about 5 p.m., said Chicago Fire Department spokesman Chief Joe Roccasalva.

Chicago police and fire crews were called to an area just east of 800 North Lake Shore Drive about 4:53 p.m., and divers recovered a man from the water there a short while later, said Chicago Police News Affairs Officer Daniel O'Brien. Police originally had said the person found in the water was a woman, but that information was erroneous, O'Brien said.

After the man was pulled from the water by Police Marine Unit divers, he was brought to shore near North Avenue, O'Brien said.

chicagobreaking@tribune.com