FERNANDINA BEACH, Fla. — A Fernandina Beach couple is facing drug charges after their 5-month-old baby died from a suspected fentanyl overdose last week, the Nassau County Sheriff’s Office said Thursday.

Melissa Sue Irons, 35, and Scott Alan Irons, 34, were arrested on drug possession charges after their infant child died at a local hospital on Thursday, June 19.

Investigators said deputies responded to a residence off South 6th Street in Fernandina Beach after a 911 call reporting an unresponsive infant. The 5-month-old later died at the hospital.

Once on the scene, the investigator found a powdery substance on a tray of the baby’s crib and drug paraphernalia around the house.

After executing a search warrant, investigators found a pouch of a purple substance, which tested positive for fentanyl, inside Melissa Irons’ bedroom drawer. Investigators also found a substance that tested positive for fentanyl inside Scott Irons’ wallet.

Both parents are facing charges of possession of a controlled substance and are booked in the Nassau County Jail & Detention Center.

Melissa Irons has a $15,000 bond and Scott Irons has a $25,000 bond.

Investigators said additional charges could be added pending the baby’s autopsy report.