PORTSMOUTH, Va. (WVEC) -- Eleven people are facing drug-related charges after the Department of Homeland Security and the Federal Bureau of Investigation conducted a series of raids in Portsmouth as well as cities in two other states Monday morning.

Authorities targeted at least four different locations in Portsmouth. At least two homes were taped off near Columbus Avenue and Palmer Street, and people could be seen outside the residences crying.

A second investigation is taking place near the area of Duke Street and Maple Avenue, 13News Now has confirmed.

At least two more raids in Portsmouth has also been confirmed. We're told all the raids happened at homes on Dale Drive, Maple Ave., Portsmouth Blvd. and Highland Ave.

More than 300 agents made the arrested after executing search warrants in Virginia, Georgia and New York.

These arrests were the result of a multi-year and multi-agency investigation called Operation Hardest Hit.

An indictment released by Homeland Security shows the suspects are accused of conspiracy to distribute, possess with intent to manufacture and distribute heroin and fentanyl as part of an operation that has been going on for approximately 10 years.

According to the indictment, authorities began investigating Leroy Perdue and his drug trafficking organization, Perdue DTO, in early 2016 following the heroin overdose death of a young resident in Chesapeake.

Law enforcement infiltrated the organization and made ten undercover controlled purchases of heroin and fentanyl.

We're told Perdue DTO distributed in excess of 100 kilograms of heroin, which equates to approximately 250,000 doses, over a 10-year period.

Organization members supplied a violent gang in Portsmouth and continued to sell narcotics even after learning that their drugs resulted in death.

Some of the suspects are also accused of interstate travel in aid of racketeering, tying the drug operation with New York and Atlanta.

At least one deadly drug overdose is connected to the case.

Indictment on Portsmouth raids by 13News Now on Scribd