Alexei Navalny, the prominent Russian opposition figure, was allegedly poisoned in prison, according to his widow Iulia Navalnaia, who has called for the release of independent laboratory findings to verify these claims.

Russian officials, including Kremlin spokesperson Dmitry Peskov, have denied knowledge of the poisoning allegations and refused to comment, while Navalnaya criticizes the lack of transparency and blames President Putin for Navalny's death.

Secret CCTV footage from Navalny's cell shows signs of a struggle and traces of vomit, but the footage has not been made public, fueling suspicions of a cover-up.

Navalny was found unconscious after experiencing extreme pain and was taken to a medical facility, where he was declared dead after resuscitation efforts failed.

Eyewitnesses from the penal colony described Navalny's sudden severe illness, including pain, vomiting, and convulsions, which are consistent with poisoning.

Navalny’s body was returned to Russia a week after his death, with thousands attending his funeral and hundreds detained during memorial activities, further fueling anti-government sentiments.

U.S. intelligence concluded that President Vladimir Putin did not order Navalny's killing, despite ongoing suspicions and accusations from Navalnaya.

Navalny’s death has sparked international outrage, with Western leaders like Joe Biden condemning the Kremlin, which dismissed the accusations as rabid statements.

Navalnaya has called for the release of laboratory results but has not provided additional evidence or details about the findings.

The allegations of poisoning and health concerns continue to be a significant aspect of Navalny’s political activism and his conflicts with the Russian government.