Alexei Navalny, Russia's most prominent opposition politician, has been suffering from severe stomach pain since Monday and an ambulance was called to the prison where he is being held due to acute stomach pains. Navalny is not eating anything due to being prohibited from receiving parcels with food or buying food in the prison store, and his team suspects that he is being poisoned again. His health has been deteriorating since he was transferred to a prison in the Vladimir region, east of Moscow, and his supporters and human rights activists are calling for his immediate release.