An immigration enforcement sweep in the Minneapolis-St. Paul area found widespread immigration fraud, according to the director of U.S. Citizenship and Immigration Services. “Officers encountered blatant marriage fraud, visa overstay, people claiming to work as businesses that can’t be found, forged documents, abuse of the H1B visa system, abuse of the F1 visa, and many other discrepancies,” USCIS Director Joseph Edlow told reporters Tuesday, according to the New York Post.