BOISE, Idaho (AP) — A federal grand jury has indicted what authorities say are 15 gang members and associates accused of distributing methamphetamine in southwestern Idaho.

U.S. Attorney Bart Davis announced the indictments Wednesday with local law enforcement officials who say the indictments involve the West Side Loma gang.

The men and women named in the indictment live mostly in Nampa but with others in Parma, Caldwell, Star, Homedale and Meridian. They range in age from 21 to 66.

Authorities say they were indicted on Nov. 13, and all are charged with distribution of methamphetamine, which is punishable by up to 20 years in prison.

Authorities say 14 of the suspects were already in custody or taken into custody following the indictments, and one remains at large.

Authorities say the charges are the result of an investigation by the Treasure Valley Metro Violent Crimes Task Force, which is comprised of federal, state and local law enforcement agencies.