POLK COUNTY, Fla. – Polk County Sheriff Grady Judd is set to speak on Tuesday morning about a groundbreaking fentanyl trafficking investigation, according to the sheriff’s office.

In a release, deputies said that the case involved two Mexican cartels, and it resulted in several arrests and “the largest seizure of fentanyl in Polk County Sheriff’s Office history.”

Judd is scheduled to hold a news conference at 10 a.m. on Tuesday to discuss the investigation, which also involved the following agencies:

• Florida Department of Law Enforcement

• U.S. Department of Homeland Security Investigations (Tampa and Phoenix Offices)

• Auburndale Police Department

• Office of the State Attorney (10th Judicial Circuit)

• U.S. Postal Inspection Service (Tampa and Phoenix Offices)

No additional information about the investigation has been provided at this time.