The Tennessee Emergency Management Agency says six people have died in the state over the last week as a result of winter weather.

Two took place in Shelby County, while Dickson, Maury, Overton and Williamson counties each reported one death.

Shelby County law enforcement said 10-year-old Benjamin Luckett died while saving his 6-year-old sister, Abigail, who fell through a frozen pond near Millington. Benjamin did not survive his injuries and Abigail remained hospitalized as her condition continued to improve.

Brentwood police said 9-year-old Campbell Martin was killed while riding on a tube being pulled down Seward Road by an ATV that was driven by his father. As the tube was sliding through snow and ice, it collided with a mailbox, resulting in Campbell’s death.

Dickson County authorities say 77-year-old Donald Mitchell, a farmer in Vanleer, was killed as he attempted to rescue two calves who went into a frozen pond. The farm where this happened is along Highway 49 West near the county line.

No information has been released so far about the deaths in Maury and Overton counties, as well as the second death in Shelby County.