NIAGARA FALLS, N.Y. -- A huge drug bust after a criminal investigation in Niagara Falls

The United States Attorney's Office says Curtis Nalls, John Banks and Cassondra McDougald were arrested and charged with conspiracy to smuggle more than 100 kilograms of marijuana into the United States from Canada. 

Investigators say the trio brought between 10 to 30 pounds of marijuana over the Rainbow Bridge nearly 40 times between July 28th, 2016 and July 25th of this year.

The three face between five and 40 years in prison and a $4 million fine.