Authorities in northern Minnesota have arrested 29 people tied to a multigenerational drug ring and say the suspects are now facing felony charges over the sale and possession of illegal drugs, including large amounts of methamphetamine and prescription opiates.

Law enforcement also seized butane hash oil, high grade marijuana, firearms and proceeds from drug sales when they arrested the suspects, both men and women, ranging in age from 26 to 68 on March 28, the Hubbard County Sheriff’s Office said.

Authorities from a number of agencies collaborated in a lengthy investigation in which they identified drug traffickers in Park Rapids, Akeley, Nevis and Menahga areas and focused on those who sold and distributed methamphetamine and prescription drugs, the sheriff’s office said.

The drug bust was a collaborative effort between the sheriff’s office, Park Rapids Police, Paul Bunyan Drug Task Force, Headwaters Safe Trails FBI Task Force, Minnesota Bureau of Criminal Apprehension, Bureau of Indian Affairs, U.S. Border Patrol, FBI and West Central Drug Task Force.

The cases will be prosecuted by the Hubbard County’s Attorney’s Office.