POLK COUNTY, Fla. — Officials with the Polk County Sheriff's Office said the department has recorded the largest heroin bust in its history.

  • Seized drugs had street value of nearly $10 million
  • Undercover detectives had worked on case since April
  • 7 people arrested

Sheriff Grady Judd said Monday that seven people were arrested, with five kilos of heroin seized.

About 137 pounds of methamphetamine was also seized, according to a news release from the Sheriff's Office.

Judd said the investigation involved multiple states and that undercover detectives had been working the case since April.

The suspects attempted to sell meth and heroin to detectives — even on Thanksgiving.

"They thought they were slick. They thought the cops don't work on Thanksgiving," Judd said.

The drugs had a street value of about $9.5 million, according to Judd.

"Our detectives did an outstanding job of removing these drugs and dealers from causing future misery, violence, and death," the sheriff said.