Russia's Navalny has mystery ailment which may be poisoning - spokeswoman
"He is being held in a punishment cell with acute pain without medical help," Kira Yarmysh said.
Russian opposition politician Alexei Navalny takes part in a rally in Moscow, Russia, February 29, 2020. (photo credit: REUTERS/SHAMIL ZHUMATOV/FILE PHOTO)ByREUTERSUpdated: