The defendants are Ernesto Arberty Mendez Herrera, 43, of Roxbury; Ricky Junior Rodriguez Reynoso, 24, of Boston; Cristofel Baez Guerrero, 25, of Dorchester; Luis Castillo, 24, of Dorchester; Yomerli Mendez Arias, 22, of Lawrence; Estarling Perez Almonte, 28, of Roslindale; Raidyn Hernandez Montero, 24, of Dorchester; Ricardo Canela Soto, 20, of Dorchester; and Waldo Lara Arias, 19, of Boston, prosecutors said.

The men are charged with conspiracy to distribute and possession with intent to distribute controlled substances, including fentanyl, methamphetamine and cocaine, prosecutors said. The defendants appeared in federal court in Boston and Bangor, Maine, on October 29.

Their charges carry “a sentence of up to 20 years in prison, at least three years and up to lifetime supervised release, and a fine of up to $1 million,” prosecutors said.

Sabrina Lam can be reached at [email protected].