Imprisoned Russian opposition politician Aleksei Navalny has been placed in a punitive solitary confinement cell for the 17th time since last August, his lawyer Vadim Kobzev said on July 21. According to Kobzev, his client was sent to solitary for 13 days for "improperly introducing himself to a guard." Navalny, who has called all of his placements in punitive confinement "politically motivated," has served 180 days in solitary. A day earlier, prosecutors requested a court sentence Navalny to another 20 years on charges including extremism. To read the original story from RFE/RL's Russian Service, click here.