Alexei Navalny, a prominent foe to Russian President, Vladimir Putin, was rushed to hospital with “poisoning” after his plane made an emergency landing due to a sudden acute illness.
According to Metro Uk, Navalny is heard crying out in agony from the back of the plane in a disturbing video clip that was recorded by a fellow passenger.
Other clips show the lawyer and anti-corruption campaigner being carried off the plane stretchered from the aircraft to a waiting ambulance in the Siberian city of Omsk on Thursday.
He was unconscious, according to his press secretary, Kira Yarmysh, who suspects poison was added to his tea.
Navailny was put on a long ventilator in intensive care, according to reports.
He had been taken ill on a scheduled flight from Tomsk to Moscow and was delivered to the hospital with the preliminary diagnosis of “toxic poisoning”.
Yarmysh tweeted from his ambulance: “We assume that Alexei was poisoned with something mixed into the tea.