U.S. officials announced Tuesday they had created a fake university and caught 21 people in a conspiracy that allowed more than 1,000 foreigners to maintain student and work visas. The nearly two dozen defendants knew the University of Northern New Jersey was a sham with no instructors, classes or degree programs, officials said. But they were unaware the school was a creation of Immigration and Customs agents. Paul Fishman, U.S. attorney for New Jersey, told reporters that once word got out about the bogus school, the visa brokers and recruiters descended. During one secretly recorded conversation, Fishman said, a conspirator said the practice has been going on for years. "This was just another stop on the 'pay-to-stay' tour," he said, according to AP. Most of the defendants, who Fishman said are in the U.S. legally, live in New York, New Jersey and California. They are charged with conspiracy to commit visa fraud and conspiracy to harbor aliens for profit. They were scheduled to make initial court appearances Tuesday.