ATLANTA (AP) — A strong storm system barreling through the South on Friday killed an 8-year-old girl in Florida and threatened to bring tornadoes to large parts of the Carolinas and southern Virginia.

A tree fell onto a house in Woodville, Florida, south of Tallahassee, killing the girl and injuring a 12-year-old boy, according to the Leon County Sheriff’s Office. The office said in a statement that the girl died at a hospital while the boy suffered non-life-threatening injuries. Their names were not immediately released.

The same storm system was blamed for the deaths a day earlier of three people in Mississippi and a woman in Alabama.

The threat on Friday shifted farther east, where tornado warnings covered parts of northeast Georgia, the Carolinas and Virginia.

The national Storm Prediction Center said 9.7 million people in the Carolinas and Virginia were at a moderate risk of severe weather. The region includes the Charlotte, North Carolina metro area.

Torrential downpours, large hail and a few tornadoes were among the hazards, the National Weather Service in Raleigh, North Carolina, warned.

Radar readings appeared to show a tornado formed in western Virginia’s Franklin County, south of Roanoke, though damage on the ground still must be assessed, said National Weather Service Meteorologist Phil Hysell.