From The Washington Post, where you can read even more on the story:

Authorities have arrested a dozen members of a suspected street crew operating along Kennedy Street in Northwest Washington on drug and gun charges and seized 42 firearms, along with fentanyl and cocaine, federal prosecutors and D.C. police announced Tuesday.

The investigation into the Kennedy Street Crew was led by the Violent Crime Impact Team, a task force of federal and local law enforcement personnel. Police said eight of the seized firearms had been modified to fire as fully automatic machine guns.

Investigators with the IRS participated in the investigation, targeting what authorities described as shell companies suspected of being used to launder proceeds from drug trafficking. No specific details of that aspect of the case were revealed in court papers filed Tuesday.

“If an IRS criminal investigator is part of this case, you know you really tripped up,” interim D.C. police chief Ashan M. Benedict told reporters after the federal indictments were unsealed in U.S. District Court in D.C.

“They’re not really looking at nickel-and-dime investigations,” Benedict said at a news conference. “They’re here because the Kennedy Street Crew is not some corner crew. This is an organized criminal organization.”

Matthew M. Graves, the U.S. attorney for the District, said some information remains sealed as police search for several more suspects in the case. He said arrests were made over the past 36 hours.

A small-but-committed group of writers, bloggers and videographers that (mostly) exist and function all over the D.C. Metro area.