PITTSBURGH — An accident at a U.S. Steel plant just outside the city on Thursday injured two workers, but a company spokeswoman said she couldn’t comment on 911 dispatch records that one of them was burned by molten steel.

U.S. Steel, which is based in Pittsburgh and makes steel products for the automotive, appliance, industrial machinery, construction and oil and gas industries, said in an e-mailed statement that the workers were injured at the Edgar Thomson Plant in an accident involving “remotely operated locomotives, one of which was moving an iron sub ladle.” The statement didn’t specify whether the ladle was holding molten steel, and spokeswoman Courtney Boone said federal medical privacy laws prevent her from being more specific about the injuries.

One worker was being treated at a hospital, while the other was being treated by the plant’s medical staff, the statement said.

An Allegheny County dispatch supervisor said that a call came in about 11:30 a.m. reporting a worker had been burned by molten steel. That worker was taken to UPMC Mercy hospital, which has a specialized unit for burn victims. A hospital spokeswoman could not comment on the worker’s condition without knowing his name, which the company has not released.

U.S. Steel’s website said the plant, in Braddock, about 10 miles southeast of Pittsburgh, features two blast furnaces that produce liquid iron that is refined to create steel slabs. The slabs are sent to another facility, where they are rolled into sheet metal products.

U.S. Steel’s statement said the accident didn’t affect the plant’s operations.

“Safety is a core value for our company and a full investigation into the cause of the incident will be conducted jointly with the United Steelworkers (union),” the company said.

A union official didn’t promptly respond to a call and an e-mail for comment.