PALM COAST, Fla. -- A two-year investigation into illegal drug activity in Flagler County resulted in the arrest of more than 60 residents and the seizure of more than $330,000 worth of drugs, $117,000 in cash, and several weapons and firearms, the sheriff's office announced on Thursday.

"Operation Zero Tolerance" culminated Tuesday with the execution of four search warrants and the arrest of Robert Adams, 34, of Bunnell, who authorities said was the kingpin of the drug operation.

Adams was charged with trafficking more than 400 grams of cocaine, conspiracy to traffic more than 600 grams of cocaine, continuing a criminal enterprise and money laundering. He was being held without bond in the Volusia County jail.

The sheriff's office said other suspects are being sought and more arrests are expected.

"Operation Zero Tolerance" began in 2006, with the Florida Department of Law Enforcement's Tri-County Narcotics Task Force joining the investigation when evidence was found that drug trafficking extended to Orlando and Miami.

"The intelligence they collected at the beginning of this operation proved to be the stimulus to bring in state and federal agents," Flagler County Sheriff Donald Fleming said. "This has significantly impacted large scale drug trafficking and especially the street level dealers here in Flagler County."