Underground gas explosion occurs in Chicago

Hazard identification procedures may need to be enforced following an underground gas explosion in Chicago.

The incident occurred in the Deep Tunnel flood protection system in the South Holland district yesterday (June 14th).

Nobody was hurt in the blast, but locals recall hearing a loud noise and feeling the tremor.

Frank Giordano Jr works nearby in an office and says part of the ceiling fell down above him as the building shook when the explosion happened.

It is thought to have been caused by a build up of methane gas, although spokeswoman Patricia Young declined to comment on this.

No workers were in the tunnel at the time of the explosion, which blew off the cover to the vent of the shaft.

A major fire recently occurred at a manufacturing plant in Texas, after a storage tank exploded at the CHI-EPIC facility.

Reports from KSLA News suggested a second tank was in danger of blowing up from the heat, but this was avoided thanks to a cooling process.