Li-Meng Yan's account was taken down on Tuesday after she accused China of intentionally manufacturing and releasing COVID-19. Photo: Fox News

Li-Meng Yan's account was taken down on Tuesday after she accused China of intentionally manufacturing and releasing COVID-19. 

The Twitter account remained down on Wednesday and a message on the page now reads: 'Account suspended. Twitter suspends accounts which violate the Twitter Rules.'

Twitter has not commented on the suspension of Yan's account. 

The social media giant started putting warning messages on tweets in May that contained disputed coronavirus claims. 

It is not clear if there was one specific tweet from Yan that violated Twitter's policy. 

In an interview with Fox News' Tucker Carlson on Tuesday night, Yan claimed she was suspended because 'they don't want the people to know this truth'.

Yan, who is a former researcher at the Hong Kong School of Public Health, said COVID-19 was 'man-made' and 'not from nature'. 

'I have evidence to show why they can do it, what they have done, how (they did it),' she told Fox News.

'The scientific world also keeps silent... works together with the Chinese Communist Party, they don't want people to know his truth. That's why I get suspended, I get suppressed, I am the target that Chinese Communist Party wants disappeared.' 

After the segment aired, the Fox News show also accused Facebook of censorship after saying they had been blocked from sharing the interview segment on the social media platform.   

A video of the interview segment posted on the Tucker Carlson Tonight show's page now comes with a warning that reads: 'False Information. This post repeats information about COVID-19 that independent fact-checkers say is false.'

It comes as Yan published a report this week that she claims backs up her theory that China created the virus in a lab. 

Some scientists have since said her report is 'unsubstantiated' and said it 'cannot be given any credibility'.

Yan's report has not been published in a scientific journal and has not been peer-reviewed - meaning it has not been checked and approved by fellow scientists. 

Her report was posted on the website Zenodo.

The study was produced by the Rule of Law Society and the Rule of Law Foundation, sister organisations that former Trump strategist Steve Bannon founded with 50-year-old Chinese fugitive Guo Wengui. 

Yan, who claims she fled to the US in April, says she was working at the Hong Kong School of Public Health - a reference laboratory for the World Health Organisation - before she was cut off after trying to alert people to human-to-human transmission of the virus in December.

The lab has denied that Yan ever 'conducted any research on human-to-human transmission' and said her assertions have 'no scientific basis'.  

In her report released this week, Yan claims the virus was built by merging the genetic material of two bat coronaviruses. 

She claims its spike protein – a structure on the surface of the virus which it uses to bind with cells – was edited to make it easier for the virus to latch on to human cells.

Other research papers have already determined the origin of the virus as bats, which has resulted in top experts dismissing suggestions the virus was created by humans.