
Alexei Navalny, Russia's most prominent opposition politician, is grappling with severe stomach pain in jail that could be some sort of slow acting poison, his spokeswoman said on Thursday.
An ambulance was called for Navalny overnight on Friday to Saturday to the maximum security IK-6 penal colony at Melekhovo, about 250 km (115 miles) east of Moscow, where he is being held. Kira Yarmysh, his spokeswoman, told Reuters.