The president and CEO of a private college that catered to foreign students has been sentenced to 16 years in prison for defrauding the Department of Homeland Security by issuing phony visa-related documents to international students in exchange for tuition and fee.

Private and public universities in South Korea have engaged in creative accounting practices resulting in excessive hikes in tuition fees, the state audit agency said. Wrapping up an investigation into 35 randomly chosen universities, including nine public institutions, the Board of Audit and Inspection said the institutions had habitually manipulated their accounting books over the past five years to justify steep rises in tuition expenses.