Her seven-year prison sentence, handed down last week, was commuted on May 8 to a three-year suspended sentence.
Niyazova had been charged with illegal border crossing, smuggling, and fostering unrest with the help of foreign funding. The sentence was lightened after Niyazova pled guilty and condemned her former employer.
Freedom House said Niyazova's detention was solely due to her work.
Human Rights Watch says at least 14 other rights defenders remain in custody in Uzbekistan on politically motivated charges.
BREAKING THE NEWS: Press freedom is under assault in virtually all of the countries of the former Soviet Union. Independent media confront enormous challenges in providing citizens with the independent information that can help advance democratic reforms. On May 2, RFE/RL's Washington office hosted a roundtable briefing that gave an overview of media developments in the CIS and discussed the connections between press freedom and future democratization. The briefing featured Freedom House Director of Studies CHRISTOPHER WALKER, American University Associate Research Professor ROBERT ORTTUNG, and RFE/RL Central Asia analyst DANIEL KIMMAGE.
RFE/RL's Press Freedom Day stories:
THE COMPLETE STORY: To view an archive of RFE/RL's coverage of media-related stories, click here.