A federal safety agency recommended the development of written policies and procedures for flushing gas valves a year after a blast at a U.S. Steel plant near Pittsburgh killed two workers. The U.S.

The preliminary findings say how the company believes the explosion occurred. A union statement cautioned the investigation is in its early stages.

A ruptured gas line wasn't enough to explain the 1988 disaster. The metal drums told the real story.

Haven area residents evacuated from their homes late Thursday due to lingering explosion concerns from trapped gas at a natural gas processing plant that caught fire southwest of Haven have been ...