The doctor who treated Alexei Navalny for poison has suddenly died, his hospital said Thursday.
Sergey Maximishin, 55, was deputy chief physician at Omsk Emergency Hospital No. 1.
Maximishin knew more than anyone else about Alexei s condition, Navalny s chief of staff said.
A doctor who treated Russian opposition leader Alexei Navalny after his poisoning last year has died, according to the hospital.
Fifty-five year old Sergey Maximishin, who was the deputy chief physician at Omsk Emergency Hospital No. 1, suddenly passed away, his hospital said, according to a Thursday CNN report.
The statement did not mention the cause of death, but Galina Nazarova, the press secretary of the Omsk region Ministry of Health, told the Russian Life.ru news site that that Maximishin died of a heart attack.
A doctor who was in charge of treating Alexei Navalny in Russia soon after he was poisoned with novichok has died suddenly aged 55.
Dr Sergei Maksimishin was in charge of intensive care at the Omsk hospital where the opposition leader was taken after he became seriously ill on a plane which was forced to make an emergency landing.
The Omsk hospital and the Russian authorities strongly denied that Navalny showed any signs of nerve agent poisoning but the Putin critic then flew to Germany for life-saving treatment where doctors detected novichok.
Dr Sergei Maksimishin who was in charge of treating Alexei Navalny in Russia soon after he was poisoned with novichok has died suddenly aged 55.