BANGOR (AP) — Three men arrested in connection with what authorities call one of the biggest marijuana busts in state history head to trial this week.

The Portland Press Herald (http://bit.ly/19MaECH ) reported that Malcolm French, Kendall Chase, and Rodney Russell are scheduled to appear Wednesday in U.S. District Court in Bangor on drug trafficking and conspiracy charges.

Police said the three men played key roles in a sophisticated outdoor marijuana growing operation at two sites, near a camp in Lagrange, in Penobscot County, and at a site in the woods of Township 37, near Horse Lake in Washington County.

Police said a raid at the Washington County site alone in September 2009 yielded 3,000 plants worth an estimated $9 million.

The prosecutor and defense attorneys for the defendants refused comment before trial.