Excerpts from abc7chicago.com:
Oak Park firefighters and police responded to the 200-block of South Maple Street for a fire with collapsed sections of wall Wednesday afternoon.
The Oak Park fire chief could not confirm just yet that this was a natural gas explosion but did say the damage seen in the front yard is not normal for a standard fire. Nicor is working with investigators to find out what happened.
The 12 people who live inside the six-unit building have all been displaced after the suspected gas explosion. One person was taken to Loyola University Medical Center in serious condition.
Some people who live there said they smelled gas and others living nearby heard the initial blast of noise.
The state fire marshal is expected to take over the investigation.
