"We had a subsidiary project in English, In the Now. The project was wildly popular -- 2.5 billion views and four million subscribers on Facebook alone!" RT editor-in-chief Margarita Simonyan said on her Telegram social network account.
She said a report aired by CNN about the project being financed by the Russian state led to "Facebook immediately blocking us! Without presenting any of the accusations."
"We didn't violate any Facebook rules," she said.
Simonyan said it should not be an issue that the page did not disclose its Russian funding to visitors.
Asked to comment, Kremlin spokesman Dmitry Peskov said RT "must receive an explanation from Facebook regarding what exactly was the reason" for it being blocked.