China is tightening rules for online news as censors try to control a flood of information spread through instant-messaging apps, blogs and other media sources that are proliferating across the country. The rules announced Tuesday will require online publishers to obtain government licenses and block foreign or private companies from investing in online news services or directly disseminating news.

Chinese news outlets will have to undergo a security review before working with foreign companies, according to a statement from the Cyberspace Administration of China, the agency charged with enforcing the rules, which take effect June 1. The move follows a crackdown on dissent under Communist Party leader Xi Jinping that has led to tighter controls on what can be published online. READ MORE