Yuen, a former member of the Southern District Council, left Lo Wu Correctional Institution at around 5.40am on Tuesday. According to local media, two black seven-seaters with their curtains drawn were seen leaving the compound, believed to be transporting Yuen.
A source said the 31-year-old returned home after 6am and was reunited with her family.
She was among the 45 former politicians and activists convicted of and sentenced for conspiracy to subvert state power under the Beijing-decreed national security law for their involvement in an illegal legislative “primary” election in 2020 that formed part of a plot to overthrow the government.

Yuen, who pleaded guilty to the subversion charge, had been detained since 2021. She was also formerly a member of the now-disbanded localist party Demosisto.