Russian opposition leader Alexei Navalny’s widow accused President Vladimir Putin’s regime of poisoning her husband with the nerve agent Novichok — and then barring the family from seeing his body to allow traces of the deadly chemical to disappear from his system.

In a powerful nine-minute address posted on Navalny’s official YouTube channel Monday, Yulia Navalnaya directly blamed Putin for the death of her “children’s father” — and said she knew why he was killed on Friday while serving time at a notoriously brutal Arctic penal colony.

“We know exactly why Putin killed Alexei three days ago,” Navalnaya said. “We will tell you about it soon. We will definitely find out who exactly carried out this crime and how exactly. We will name the names and show the faces.”

The courageous woman also vowed to continue her late husband’s work.

“I will continue Alexei Navalny’s work. I will continue to fight for our country. And I encourage you to stand by my side,” she said.

“Do not just share the endless grief and pain that has enveloped us and will not let us go.

“I ask you to share this anger with me. Anger, rage, hatred for those who have dared to destroy our future.”

Navalny, 47, who had survived being poisoned with Novichok in 2020, died on Friday, after Russian prison officials claimed that he collapsed and lost consciousness while on a walk at the “Polar Wolf” prison.

His mother and family lawyers have spent the past days trying to recover his body from the Salekhard District Clinical Hospital and learn his cause of death, only to be told that the postmortem investigation had been extended indefinitely.

“They are lying, buying time for themselves, and not even hiding it,” Kira Yarmysh, a Navalny spokesperson, wrote on social media.

The Kremlin has denied involvement in Navalny’s death — and warned that Western claims that Putin had his political foe killed were unacceptable