When the fire was reported, three adults had gotten out of the home. Firefighters and deputies who arrived on the scene were told by two adults outside that another adult had gone back inside to rescue the children.
Two adult relatives were taken from the scene to a hospital with what were not believed to be life-threatening injuries, said Assistant Chief C. W. Miller.
The children who died were 7, 2 and 6 months, according to Major Ryan Cookson of the Gloucester County Sheriff's Office.
Firefighters remained at the scene for several hours after the blaze was extinguished, searching for the woman and three children. Their bodies were being taken to the medical examiner's office for formal identification and to determine the cause of death. The victims' identities will not be released by the sheriff's office until they are confirmed by the medical examiner's office, Cookson said.
The cause of the blaze, which is believed to be an accident, was under investigation by the Sheriff's Office and Virginia State Police.
The flames did not spread to any other buildings and no firefighters were injured while battling the blaze.
Written by The Virginian-Pilot