Construction crews hit the high pressure gas main break in the 600-block of East 91st Place in the Chatham neighborhood around 6:45 a.m.. The break prompted a Level 2 Hazmat response,the Chicago Fire Department said.
Authorities respond to South Side gas main break
The Chicago Fire Department evacuated homes as a precaution and a nearby school was put on lockdown to shelter in place. Some kids in a summer program are being picked up by their parents.
The hazmat was secured by 10:30 a.m. No injuries were reported.