U.S. Steel plans to close its iron and steel making operations in Hamilton by the end of the year, the Pittsburgh Business Times is reporting.


Mario Longhi, CEO of U.S. Steel Corp., said in a conference call Tuesday that it will close the operations by Dec. 31.


"Decisions like this are always difficult, but it is necessary to improve our cost structure," the article quotes him as saying. He wasn't sure how many employees were impacted.


More to come.