Corinthian Colleges Inc. on Sunday said it is ending operations and closing its remaining 28 campuses, affecting about 16,000 students.

The troubled operator of for-profit colleges, which has been winding down its operations, said efforts to sell the campuses or arrange teach-out partnerships with other institutions had failed, “largely as a result of federal and state regulators seeking to impose financial penalties and conditions on buyers and teach-out partners.”

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