ROCKMART, Ga. - Authorities are investigating a deadly explosion at a manufacturing plant in the northwest Georgia town of Rockmart.

Polk County Coroner Lester Litesey III tells The Associated Press that 56-year-old Elaine Davidson of Rockmart died in the blast.

It happened shortly after 8 a.m. today at the Meggitt Polymers and Composites plant in the town about 45 miles northwest of Atlanta.

Litesey said the explosion involved a boiler, and there were no other deaths or injuries associated with the incident.

Glenn Allen, a spokesman for Georgia Insurance and Safety Fire Commissioner Ralph Hudgens, says an investigator from that agency was at the scene.

Few other details were immediately available late Thursday morning.