Russia's communications regulator accused 10 local media outlets on Saturday of falsely depicting what Russia calls a special military operation in Ukraine and distributing false information about events there.
Among those sent warning letters were Echo Moskvy, a popular radio station, and Novaya Gazeta, a newspaper critical of the government whose editor-in-chief Dmitry Muratov was awarded a Nobel Peace prize last year.
Roskomnadzor, the regulator, ordered the media to delete the offending information or face restricted access to their websites and media resources.
Russia launched a full-scale invasion of Ukraine last week, saying it needed to demilitarize its neighbor.