Authorities say five people have been charged for trafficking nearly 600 pounds of marijuana from Arizona to Illinois.

The group had been under surveillance for three months by several police agencies before the investigation concluded Tuesday, according to a news release from the North Central Narcotics Task Force. Police seized 598 pounds of marijuana during the investigation.

Those charged with marijuana trafficking, possession of more than 5,000 grams of marijuana with intent to deliver and possession of more than 5,000 grams of marijuana include Richard G. Ecklund, 48, of the 2700 block of Sperry Court in Batavia; Dean A. Dziuba, 55, of the 1100 block of Lodgepole Court in Darien; Matthew A. Westerlin, 28, of the 300 block of Nebraska Street in Elburn; and Crystal L. Westerlin, 29, of the 300 block of Nebraska Street in Elburn.