The accounts were closed yesterday on WeChat, a service run by TenCent Holdings Ltd. The action came hours after the closing of the eight-day annual session of China's ceremonial legislature.
The accounts that were removed were deemed public, meaning any user of the service could sign up to see them. Such accounts have been used by intellectuals, journalists and activists to comment on politics, law and society, and to post news reports shunned by mainstream media. Some accounts attract hundreds of thousands of followers.
The move came two weeks after the ruling Communist Party announced the creation of an Internet security group led by President Xi Jinping.
Wen Yunchao, a researcher and Internet rights activist who lives in New York City, said the timing of the removals might have been planned to avoid having reporters ask about it at the meeting of the National People's Congress that closed yesterday morning.
"This is the first act by the Internet security group led by Xi," said Wen. "He sees the Internet as a threat to the party and wants to thoroughly disable the Internet's role in politics."
