LARKSVILLE, LUZERNE COUNTY (WBRE/WYOU) — A Luzerne County couple is charged with the death of their 16-day-old child.

State police say the baby was fed breast milk that contained traces of the lethal opioid drug fentanyl, which investigators believe ultimately lead to the infant’s death.

45-year-old Jennifer Travinski faces charges including third-degree murder in connection with the death of her newborn daughter Arya nearly one year ago.

Her husband, 40-year-old Gary Travinski, is charged with endangering the welfare of a child, and drug-related offenses.

According to court papers, state police discovered more than 200 packets of fentanyl inside their Larksville home, including near the baby’s diaper changing area.

Investigators say Gary admitted to using the drug, and prosecutors believe Jennifer abused it while pregnant and breastfeeding.

“It’s a long time coming. We wanted to make sure we had everything, all our t’s crossed and i’s dotted, and be ready and have a solid case, and the charges are certainly appropriate for what happened here. We knew they were using drugs and it was unfortunate that the baby was ultimately born and then the baby ultimately died from the continued drug use,” said Carly Hislop, Luzerne County Assistant District Attorney, Special Victims Unit.

Magisterial District Judge David Barilla jailed Jennifer and Gary Travinski without bail in the Luzerne County Correctional Facility.

Their preliminary hearing is scheduled for next month.