Updated

The Mexican army says soldiers found a series of marijuana fields covering 140 acres in the northern state of Durango.

The army says a patrol also found 44 tons of harvested marijuana at the plantation in Mexico's "golden triangle" region, an area known for drug cultivation and trafficking.

The discovery comes almost two weeks after soldiers found what the army described as the biggest pot plantation ever detected in Mexico, a 300-acre field in the state of Baja California.

The Defense Department said in a statement Monday that the plantation found this week included a processing lab and five camps for workers or guards.

The fields were discovered Saturday.