(BBC NEWS) Twitter, under intense scrutiny for its use of fact-checking warnings, has added them to tweets from China's foreign ministry spokesperson.
The warning has been added to tweets from spokesman Lijian Zhao, in which he warned: "It might be US army who brought the epidemic to Wuhan."
Twitter added the warning more than two months after the tweets were posted.
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It comes amid a row with the White House, after similar warnings were added to tweets from President Trump.