They show Navalny's mother the body and death certificate of her son. They want to take me to the edge of a cemetery, to a fresh grave and say: here lies your son.
I don't agree with this," she said in a YouTube video. Navalny, 47, Russia's best-known opposition politician, died suddenly in an Arctic prison on Friday last week. The certificate indicates that he died of natural causes, his team has pointed out. The mother has rejected a secret burial that she says the Russians are preparing.