Federal prosecutors are accusing parents involved in the college admissions scam case, such as actress Lori Loughlin, of withholding evidence, according to CNN.

In a case filing Friday, prosecutors say most of the parents accused of bribing university officials to admit their children have not submitted their discovery materials.

The 55-year-old Loughlin, who played Aunt Becky in "Full House," and her husband, Mossimo Giannulli, are accused of bribing administrators at the University of Southern California and paying a third-party fixer $500,000 so their daughters could pose as athletes at the competitive university.

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When the case began last year, the couple pleaded not guilty to the charges of conspiracy to commit fraud, conspiracy to commit money laundering and bribery.

Loughlin and Giannulli’s attorneys have also accused prosecutors of hiding evidence that would benefit their defense in the college admissions scandal.

In that motion, the couple claimed they did not know the money they gave USC was being used for unofficial, malicious transactions.