A sign sits on the exterior of the Charite Hospital as Russian anti-corruption campaigner Alexey Navalny undergoes treatment inside, in Berlin, Germany, on Monday, Aug. 24, 2020. Navalny, who has been in a coma since Thursday, is being examined at a German hospital and it may be days before officials can confirm or reject accusations that he was poisoned. Photographer: Krisztian Bocsi/Bloomberg via Getty Images