Evensville, Tenn. ? A house fire killed nine members of a family, including six children, in eastern Tennessee early Saturday, officials said.

The fire may have started on the second floor of the two-story house, where the victims were sleeping, said Rhea County Sheriff Mike Neal.

Joseph Alexander, a 19-year-old member of the family who was the only one asleep on the first floor, jumped out a window and escaped unharmed, officials said.

Funeral director Randy Garrison identified the dead as Reba Ann Alexander, 42; Krystal Alexander, 25; Misty Marie Alexander, 23; John David Smith II, 17; Jennifer Marie Edwards, 10; Lexie Weaks, 5; Angel Dawn Weaks, 2; Jaden Rhea Sullivan, 1; and Clarissa Sanchise, 1.

Some of the family members were staying at the house temporarily as they prepared to move, the sheriff said.