Two die at Northrop Grumman’s Avondale shipyard

Two employees of Northrop Grumman Ship Systems were killed in separate cases at the company’s New Orleans-area yard, authorities said.

About 1 p.m. Monday, a piece of equipment fell on an employee, crushing him to death, said Col. John Fortunato, a spokesman for the Jefferson Parish sheriff. The man was pronounced dead on arrival at a hospital.