This was an investigation that lasted 15 months.

Authorities say a major operation based in Pueblo has been shut down.

And they seized more than one million dollars worth of drugs.

All the suspects are from Pueblo, and are apparently connected to a one family.

Pueblo police tells 11 News, the investigation was dubbed "Operation Family Tradition."

That's because of the suspected involvement of several members of that family.

Investigators say, Ellena Avila Lopez is believed to be the ringleader of the criminal organization.

Through the use of confidential informants, and undercover agents, the alleged hierarchy of the Ellena Avila Lopez drug trafficking organization has finally been taken down.

An estimated 1.2 million dollars worth of illegal drugs were seized.

So far, 25 suspects have been arrested, as well as 11 suspects waiting to facing charges, and one man, Richard Ebel is still on the loose.

Authorities say, this drug trafficking organization has been operating as a criminal enterprise for several years in Southern Colorado, distributing large amounts of Methamphetamine.

"I hope that this huge, successful operation will send a message to people in Pueblo that law enforcement is working on problems, and I hope it sends a message to the drug traffickers that we will eventually get to you, " says Chief Jim Billings, Pueblo Police Department.

The Pueblo Police department is continuing to follow leads related to this bust, which officials say may result in additional arrests.