Pattaya, Thailand (CNN) The prostitution trial of a self-described "sex coach" who claims to have insider knowledge of Moscow's attempts to meddle in the US elections ended abruptly on Tuesday after she unexpectedly pleaded guilty.

Belarus-born Anastasia Vashukevich and the seven other defendants in the trial admitted to three charges, including soliciting prostitution and "forming and being a member of a secret society."

The trial had only begun in Thailand on Tuesday and was expected to last several days. The group had originally pleaded not guilty to the charges in August, local media reported

Vashukevich made headlines last year when she publicly asked the United States to help free her from a Thai detention center in exchange for information on alleged ties between the Trump campaign and Russia.

Vashukevich, who goes by the name Nastya Rybka on her social media accounts, was part of a group -- led by author and free sex advocate Alexander Kirillov -- which was arrested last February in the Thai resort town of Pattaya while running so-called sex training sessions.