On Thursday night, the human rights activist Marina Litinovich posted a video to her Facebook account calling for her fellow Russians to protest the country's invasion of its neighbor to the west.
"I know that right now many of you feel desperation, helplessness, shame over Vladimir Putin's attack on the friendly nation of Ukraine," she said. "But I urge you not to despair."
Within hours, Litinovich was in custody, facing a fine for "an attempt to organize an unsanctioned rally."