BETHLEHEM TOWNSHIP, N.J.—Prosecutors say a three-month investigation into marijuana distribution in Hunterdon County and Easton, Pennsylvania ended with the arrests of three people.

Authorities moved in after they say they observed the three harvesting numerous pot plants off a road in Bethlehem Township on Monday.

Police seized approximately 45 pounds of marijuana with a street value of $200,000 and nine partially harvested plants.

Prosecutors have charged 46-year-old Michael Belmonte of Hampton, 53-year-old Stephen Benko of Lebanon and 42-year-old William Hogrebe of Easton, Pa., with possession with intent to distribute a controlled substance and eluding.

It's not known if they hired lawyers.