South Side fire leaves 7 hospitalized

An extra alarm fire has left seven people hospitalized after firefighters evacuated more than 100 people from an eight story apartment building on Chicago's South Side.

A fire department spokesman says the blaze early Sunday morning began in the building's incinerator. Heavy smoke enveloped the upper stories of the building. Firefighters rescued at least two residents by way of ladders.

Six people were taken to local hospitals in fair-to-serious condition. One victim was reportedly in serious-to-critical condition.

The cause of the fire is under investigation.