JEFFERSON COUNTY — A 36-year-old Mississippi man is being held in the Jefferson County Jail with bail set at $500,000 following his arrest last week in connection with an Illinois State Police investigation into drug trafficking.

Corey Frierson was arrested July 30 and taken to the Jail in Mt. Vernon. He was formally charged in Jefferson County Court Monday with Class X felony trafficking of a controlled substance and possession with the intent to distribute more than 900 grams of fentanyl.

Frierson’s case is the second one filed in the last week against a person from Mississippi on drug trafficking charges in Jefferson County.

Brandi Tate was charged Monday in Jefferson County Court with Class X felony controlled substance trafficking and Class X felony manufacture with the intent to distribute more than 900 grams of fentanyl.

Both Tate and Frierson are next scheduled to appear in court on August 25 for preliminary hearings and a first appearances with their court-appointed attorneys.