Image copyright AP Image caption Ren Zhiqiang has more than 30m followers

China has shut down the microblogging accounts of outspoken former property tycoon Ren Zhiqiang after he criticised President Xi Jinping.

The Cyberspace Administration of China accused Mr Ren of publishing "illegal messages that had a bad impact".

Mr Ren had written that state media were funded by taxpayers and should serve them, not the Communist Party.

President Xi urged state media early this month to follow party lines in their reporting.

China has been criticised for its strict internet regulations, including blocking major sites and censoring posts.

But Mr Xi has argued that countries had the right to choose how to develop and regulate the internet.

Media playback is unsupported on your device Media caption China thinks your government should control your internet

Almost 40 journalists are currently in prison in China for work posted online, the advocacy group Reporters Without Borders says.

Ren Zhiqiang is a retired top property developer with more than 30 million online followers.

His Weibo blog last week attacking Mr Xi had been criticised by state media - one referring to him as referring "anti-Communist Party" thoughts.

Internet users had to stick to the law and the fundamentals of socialism, said Jiang Jun, a spokesman for the Cyberspace Administration of China.

China has also unveiled new rules - coming into effect on 10 March - banning foreign media companies and foreign joint ventures from distributing content online without prior approval by Beijing officials.

China's 'great firewall'

Image copyright Reuters

Beijing keeps the world's largest online population under tight controls

Access to the BBC's English-language website was temporarily blocked last year

Virtual Private Network (VPN) systems are among the latest online targets

This year web users were banned from posting under famous people's names