TRION - A mobile home fire in Georgia started by an improperly installed wood stove killed six people, including four children, authorities said Monday.

The blaze happened around 10:30 p.m. Sunday in Trion, said Glenn Allen, a spokesman for the state fire marshal's office. Earlier Sunday, five people were killed in an unrelated house fire in Atlanta's northeastern suburbs.

State investigators on Monday ruled the wood stove fire accidental. Allen said they determined that the wood stove that was installed Sunday was placed too close to an interior wall with wood paneling, and that's what caused the fire.

The blaze killed 29-year-old Mirion Bradley Jones and his 22-year-old wife, Demi Josephine Jones, along with their children: 5-year-old Clair McKenzie Jones, 3-year-old Lola Rosanna Jones and 3-month-old Olivia Josephina Jones, Allen said. A cousin spending the night, 5-year-old Jada Marie Kendrick, also died.

In Gwinnett County, near Atlanta, five people were killed in a fire at a two-story house, Gwinnett County Capt. Tommy Rutledge said.

The cause of that fire hasn't been determined, but investigators say the blaze "appears to have originated in the area of the back deck," the fire department said in a statement.