Russian opposition activist Alexei Navalny has died while in detention, Interfax news agency said Friday, quoting a statement by the prison where he was serving out a sentence.
The US is concerned about the whereabouts of Russian opposition leader Alexei Navalny, who has been reportedly missing for a week. The White House has expressed concern and plans to work with the US embassy in Moscow to find out more. Navalny s allies have been unable to locate him for six days and believe he may have been transferred from a harsher prison.