Excerpts from chicago.cbslocal.com:

A house explosion and fire in Oak Lawn injured two firefighters and killed pets who were trapped inside around 4 p.m. Friday at 163rd and Kedvale, alongside Interstate 57.

Neighbors say they heard a large explosion. The home owner and his family were OK, but animals inside the home were killed.

Two firefighters were hurt when they were inside the house when an explosion occurred, and they were taken to the hospital.

Cause of the fire remains under investigation.