Two New York men have been charged with smuggling 21 illegal aliens into Vermont from Canada.

Border Patrol agents said they stopped two vans carrying 21 passengers on Sunday. The passengers were from Afghanistan, Guyana, India, Mexicoand Pakistan, and did not have the proper documents to enter the United States, according to the U.S. Attorney's office.

Robert Clark, 56, and Wilfred Nieves, 47, of New York City, have been charged with transporting illegal aliens.

Click here to read more in FOXNews.com's Immigration Center.

Clark and Nieves each crossed the U.S.-Canada border in Derby Line without stopping at the inspection station and headed south on Interstate 91, according to the U.S. Attorney's Office.

Border Patrol agents pulled over the vans and discovered the illegal aliens, prosecutors said.

Clark and Nieves face up to 15 years in prison and a $250,000 fine if convicted of the charges.