Massachusetts gas explosion injures 18; cause under investigation

SPRINGFIELD, Mass.

The blast Friday night blew out windows in a three-block radius, leaving at least three buildings irreparably damaged. Eighteen people were injured, many of them first responders. No one was killed. None of the injuries were considered life-threatening.

Pieces of broken glass littered streets and sidewalks. It was unclear how many residents had been evacuated. A shelter was set up at a school.

The center of the explosion was cordoned off Saturday morning as inspectors worked to identify unsafe structures.

The Associated Press contributed to this report.

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