FORT DODGE — A woman has died in an apartment fire in downtown Fort Dodge, authorities there said.

The fire happened Sunday afternoon, when firefighters were summoned to Central Avenue for reports of smoke coming from an apartment, the Messenger reported. Arriving fire crews found heavy smoke in the apartment and upon searching it, found an unresponsive woman inside.

The woman was pronounced dead at the scene. Officials had not released her name by Monday morning.

The cause of the fire remains under investigation by the fire department, police and the Webster County Medical Examiner.