A former aide to New York Gov. Kathy Hochul was charged on Tuesday with secretly acting as an agent of the Chinese government in exchange for millions of dollars in compensation and gifts, including meals of gourmet duck.

Linda Sun, 41, and her husband Chris Hu, 40, pleaded not guilty to criminal charges before U.S. Magistrate Judge Peggy Kuo in Brooklyn, after being arrested on Tuesday morning.

Federal prosecutors in Brooklyn said that while working in state government, Sun blocked representatives of the Taiwanese government from meeting with officials, and sought to arrange for a high-level New York state official to visit China.