The Grayzone’s story sources recently hacked and leaked documents which allegedly show that the BBC and Reuters participated in a program created by the UK government to “weaken Russia’s state influence.”

This appears to be the first instance of Twitter using this particular warning label on an English-language outlet. A search on the platform found one other instance of a version of the “hacked materials” warning label being used. This one was stamped on an Italian outlet’s tweet regarding Pfizer's COVID-19 vaccine in January.

“These materials may have been obtained through hacking or may be manipulated,” reads the earlier warning label on the tweet, which is in Italian.

Mashable has reached out to Twitter for more information. The new warning label comes after Twitter's controversial decision to block links to a New York Post story in October 2020, which included material from a laptop belonging to President Joe Biden’s son, Hunter Biden. Twitter was roundly criticized across the political spectrum for the action it took when the story was published and shared on its platform