Still, the Russian doctors asserted that they did not believe he actually was poisoned. Their decision capped off a standoff lasting over 24 hours regarding who could treat him, and where.
A charity organized the flight sending Navalny to Berlin.
Alexander Murakhovksy, the head doctor of a hospital in Omsk, Siberia, said Navalny had been diagnosed with a metabolic disease that may have been caused by low blood sugar, and did not believe that Navalny had been poisoned, Reuters reported.
Navalny, 44, remained in a coma after he fell ill while on a flight back to Moscow, with allies alleging he may have swallowed poisoned tea before boarding the flight.