A social media account for popular Chinese e-commerce app Xiaohongshu has been blocked after it issued a post on the anniversary of the 1989 Tiananmen Square crackdown.
It had posted "Tell me loudly: what's the date today?" on microblogging platform Weibo.
The post to its 14 million followers was swiftly deleted.
Its Weibo page has been replaced by a message saying it is being investigated for violations of laws and regulations.
