Data show that tariffs have been slow to boost domestic prices and arrest a decline in U.S. steel consumption.

The mill, which is part of the recent merger between U.S. Steel and Nippon Steel, has faced scrutiny from federal and local regulators.

Two people are dead and dozens of others were injured after an explosion at the U.S. Steel Clairton Coke Works plant in Clairton, Pennsylvania, officials said.

An explosion at a U.S. Steel plant near Pittsburgh left one dead and dozens injured or trapped under the rubble Monday, with emergency workers on site trying to rescue victims, officials said.

Trisha Quinn is searching for her brother who she says was working at the time of multiple explosions at the U.S. Steel Clairton Coke Works plant in Pennsylvania.

An explosion at a U.S. Steel plant near Pittsburgh left one dead and dozens injured or trapped under the rubble Monday, with emergency workers on site trying to rescue victims, officials said.

The Clairton Coke Works is considered the largest coking operation in North America and one of four major U.S. Steel plants in Pennsylvania.