The French government is said to be concerned about the lack of news about jailed Russian opposition leader Alexei Navalny. It has described the silence as "very worrying", after allies said he had been moved from his prison near Moscow.
"France considers Russia responsible for the health of its detainees, in particular political prisoners," said French foreign ministry spokesman Christophe Lemoine, adding that "the lack of news for the past several days is very worrying."
