Two firefighters died Friday fighting a massive five-alarm fire at a wood millworks in Rowan County, a hospital official said.

"One was dead on arrival and one died here this morning," said Michael Burton, a spokesman at Rowan Regional Medical Center.

Burton said two other firefighters injured in Friday's blaze at Salisbury Millworks are being treated for first and second degree burns, although he said doctors don't consider their injuries to be severe.

Burton said one other firefighter injured in the blaze was sent to North Carolina Baptist Hospital in Winston-Salem for treatment. Officials there declined to comment.

The Salisbury Post reported on its Web site that a fourth injured firefighter was flown to the University of North Carolina Hospital in Chapel Hill for treatment.

The firefighters responded to the millworks shortly after receiving a 911 call around 7 a.m. The newspaper said departments from across the county north of Charlotte were called to fight the blaze and the facility appears to be a total loss.