Chinese protesters are using blank sheets of A4 paper to express their fury over Covid-19 restrictions.
In a rare widespread outpouring of dissent that has gone beyond social media, people have taken to the streets and gathered outside of some of China's top universities.
Images and videos circulated online showed students at universities in cities including Nanjing and Beijing holding up blank sheets of paper in silent protest, a tactic used in part to evade censorship or arrest.
