COMSTOCK, Wis. — Authorities in Barron County say a search of a barn near Comstock uncovered a sophisticated marijuana growing operation.

Sheriff Chris Fitzgerald says authorities seized more than 300 marijuana plants on Thursday, after a monthlong investigation. They arrested a 37-year-old man on suspicion of drug manufacturing.

The law enforcement operation involved the sheriff’s offices from Barron, Rusk and Washburn counties, along with the state Department of Criminal Investigation.

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