"After an extensive five-day search, multiple fire experts have processed the scene and are unable to locate evidence that Chloie and Gage were victims of the fire," the text of the Amber Alert issued by the Tennessee Bureau of Investigation says. "The locations of Chloie and Gage are unknown at this time."
"We don't know where they are," TBI spokeswoman Kristin Helm told the Associated Press. "We don't have any indication that they're in another state." The alert has not been released on other states, Helm said.
Helm told the Associated Press on Friday that the TBI does not have any direct evidence that the children are victims of foul play. She told the AP there are no persons of interest in the case and that investigators are following all leads, but would not elaborate.
The TBI said earlier this week that the lack of remains does not necessarily indicate the children were not present.
"I don't know what to think. I don't know what to think," Christopher Daniel, Gage's father, told The Associated Press in a brief telephone interview. "They don't think that they burned up in the fire, the way I took it they don't."
Authorities conducted a ground search of farmland surrounding the home Friday to ensure that Chloie and Gage did not manage to run from the burning home and collapse outdoors. A similar search took place earlier in the week.
Several local law enforcement experts have said they believe the children died in the fire and the lack of remains is due to extreme heat. The basement of the Leon "Bubba" and Molly McClaran home contained over 30 propane gas tanks used on outdoor grills, authorities said.
The fire's cause is unknown and, according to Bedford County Fire Chief Mark Thomas, will likely never be determined.
Remains confirmed to be the two adults, who were the step-grandfather and maternal grandmother of the children, were found in the home, authorities said. Chloie and Gage had lived with them for several years, family members said.
Chloie is described as having brown hair and blue eyes, 4-feet-8 and 75 pounds. Gage is described as having brown hair and hazel eyes, standing 4 feet tall and weighing 50 pounds.
Information should be reported to the TBI at 1-800-TBI-FIND.