A Tennessee woman has been charged with killing her grandparents, authorities said.

Katelyn Taylor, 28, was charged with two counts of criminal homicide after investigators determined she was responsible for the deaths of Eugene McDaniel, 82, and 67-year-old Celeste McDaniel, the Tennessee Bureau of Investigation announced Monday.

Police found the couple dead inside their Camden home earlier Monday during a welfare check, TBI officials said.

It’s unclear how Taylor allegedly killed the pair. Camden police referred inquiries on Wednesday to TBI officials, who declined to release additional information.

“As this is an active and ongoing investigation, we are unable to discuss details beyond those in our release,” TBI spokeswoman Keli McAlister wrote in an email.

Cops responded to the couple’s home after someone reported that a resident there failed to show up for work, which was out of the ordinary, Camden police said in a statement.

The bodies were found inside the home, where vehicles were parked in a garage and all the doors were locked, police said.

Taylor was booked into the Benton County Jail, where her bond was set at $500,000, TBI officials said.