New Delhi, Sept. 18 -- The widow of Alexei Navalny said Wednesday that two independent labs have found that her husband was poisoned shortly before his death in a Russian prison.

Navalny, who crusaded against official corruption and staged massive anti-Kremlin protests as President Vladimir Putin's fiercest foe, died in the Arctic penal colony in February 2024. He was serving a 19-year sentence that he believed to be politically motivated.

Authorities said that the politician became ill after a walk but have otherwise given few details on his death. He was 47.

In a video released Wednesday, Yulia Navalnaya said that biological samples from Navalny's body had been taken out of Russia and tested at two laboratories abroad.

She said that...