Russian blogger Alexei Navalny who was rushed to a hospital in Omsk on Thursday morning did not eat or drink anything during his Tomsk-to-Moscow flight, a spokesperson for S7 Airlines told TASS.

"The health condition of one of the passengers, Alexei Navalny, deteriorated dramatically soon after S7 Airlines flight 2614 took off from Tomsk bound for Moscow. <…> Alexei did not eat or drink anything aboard the plane," the spokesperson said.

According to the air carrier, the crew reacted quickly and "strictly in accordance with the established procedures." Flight attendants immediately reported the incident to the aircraft commander who landed the plane at the nearest airport. After refueling, the plane headed to Moscow. Two passengers who flew together with Navalny remained in Omsk.

An inspection will be carried out in the Tomsk airport coffee shop where, according to his supporters, Alexei Navalny drank tea shortly before his health deteriorated, its director Pyotr Filonenko told TASS.