(CNN) Actress Allison Mack has pleaded guilty to racketeering conspiracy and racketeering relating to her alleged role in a sex trafficking case.

John Marzulli, Public Information Officer for the U.S. Attorney's Office for the Eastern District of New York confirmed Mack's plea, which was entered Monday.

As part of her guilty plea, Mack admitted to state law extortion and forced labor.

Attorneys for Mack did not immediately respond to a request for comment.

Mack was arrested in April 2018 and charged for her alleged involvement with an organization called Nxivm (pronounced NEX-ium), a group that claimed to be a self-help program but was, in reality, a pyramid scheme in which some recruits were exploited "both sexually and for their labor, to the defendants' benefit," according to U.S. attorney Richard P. Donoghue.

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