New Delhi, Sept. 17 -- More than a year after Vladimir Putin's critic Alexei Navalny died in a Russian prison, his wife Yulia Navalnaya has claimed that the foreign laboratory tests on biological samples obtained from her husband showed that he was poisoned, a charge that the Kremlin has denied.

In a video she posted on social media, Yulia said, "Laboratories in two countries came to the conclusion that Alexei was killed. Specifically: poisoned."

Alexei Navalny, 47, died suddenly on February 16, 2024, in a Russian prison in the Arctic Circle under mysterious circumstances, depriving the opposition of its most charismatic and popular leader.

The charismatic anti-corruption campaigner had rallied hundreds of thousands across Russia in an...