In the morning on Thursday, August 20, the fact of Alexei Navalny's poisoning was reported by his press secretary Kira Yarmysh. The Russian opposition leader Navalny felt bad in his flight from Tomsk to Moscow. The aircraft made an emergency landing in Omsk, and Navalny was taken unconscious to a local hospital.
The opposition leader’s close aides had pushed for the Kremlin critic to be transferred to a leading German toxicology center, citing a lack of vital equipment at the Siberian regional hospital and a worry that Russian doctors would be pressured by the authorities to withhold details of the cause of his illness.
An air ambulance left Berlin early Friday morning to collect Navalny and bring him to the Charité hospital in the city, but the Omsk hospital’s head doctor Alexander Murakhovsky said Navalny’s condition was unstable and he could not be transferred, triggering a stand-off. 
But late Friday evening Russian doctors have given permission for opposition leader Alexei Navalny to be evacuated for medical treatment in Germany.