CHICAGO (CBS)–One man died after he and another person were pulled from the Chicago River near the Michigan Avenue Bridge Friday afternoon.

The emergency response occurred after authorities received a call around 4:30 p.m. One individual was picked up by a water taxi, while another was pulled from the water by divers after he’d been underwater for five minutes, Fire Department spokesman Larry Langford said.

Witnesses said an onlooker jumped into the river after another person jumped into the water.

Both people were transported to Northwestern Memorial Hospital. The Cook County Medical Examiner’s office identified the man who died as Antonio Peterson, 26, of the 2400 block of West Flournoy Street.

The Good Samaritan who went into the water after the jumper was believed to be OK.

Contributing: Sun-Times Media Wire. (Source: Sun-Times Media Wire © Chicago Sun-Times 2012. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)