Tania Castillo and Clarissa Contreras were arrested by task force members Tuesday, after a long-term narcotics investigation. A large amount of fentanyl valued at $100,000 was located during a traffic stop on Chambersburg Road in Huber Heights.

"We have seen the highest recorded drug overdoses in Montgomery County in the last two weeks. This seizure of fentanyl will have a direct impact in saving lives in our communities," said Montgomery County Sheriff Phil Plummer in a release.