Twelve men were arrested in Philadelphia last week on charges of obtaining or using fraudulent CDLs – and most of them were also charged with being in the country illegally.

According to The Associated Press, 10 truck drivers and two truck company owners were allegedly involved in a scheme that involved obtaining CDLs in the names of American citizens.

The drivers were Brazilian nationals who were in the U.S. illegally, The AP reported.

The owners of Real Transportation and Fausto’s Trucking allegedly helped them get the licenses so they could haul construction debris to commercial landfills, according to The AP.