COLLIER COUNTY, Fla - Twenty South Florida men are in jail after an 18 month long drug trafficking investigation called 'Operation Mario Brothers.'

From Fort Myers to Marco Island investigators say some of the areas highest valued criminals are now off the street.

"We got what I would consider very high value targets," says Lt. Harold J. Minch of the Collier County Vice Narcotics Bureau.

After 18 months, 'Operation Mario Brothers,' is now in the books. Investigators say the two at the top of the drug trafficking operation are brothers Mario and Tony Vincente.

"They're the two that were handling the big business," says Lt. Minch. "Those two were directing the efforts of the others and were responsible for most of the import for the narcotics."

Over the course of the investigation, twenty men were arrested and charged. Seven, including the Vincente brothers are charged with conspiracy to traffic marijuana.

"I had no idea, so it's very shocking, unbelievable," says neighbor Mark Anderson. Anderson lives across the street 21 year old Tommy McKolay, one of the suspects. He says he and other neighbors thought something was going on when they saw police Tuesday.

"Just at the end of the street there were several undercover cars, so we knew something was going on," says Anderson.

In all, detectives seized more than 31 pounds of marijuana and more than $147,000, but most importantly investigators say they got repeat criminals off the street.

"What you do is you disrupt an entire organization and you kick them back on their heels," says Lt. Minch.

Minch believes this bust will lead to more arrests in the community.