GALLATIN, Tenn. (AP) — A third employee of a Middle Tennessee metal powders plant has died, following a May fire at the facility

Fred Tuttle died at Vanderbilt University Medical Center on Thursday evening, according to WTVF-TV, which quoted a hospital spokesperson.

Tuttle was one of five people who were injured — three of them critically — in a May 27 fire at the Hoeganaes (HAY'-gan-ehz) plant in Gallatin.

Employees Rick Lester and Eric Hulsey died in June from their injuries.

The fire was blamed on hydrogen gas leaking from a corroded pipe.

Two other workers died from a flash fire at the plant in January.