The mother of Russian Opposition leader Alexei Navalny appealed on Tuesday to President Vladimir Putin to intervene and turn her son’s body over to her so she can bury him with dignity.

Lyudmila Navalnaya, who has been trying to get his body since Saturday, appeared in a video outside the Arctic penal colony where Navalny died on Friday. “For the fifth day, I have been unable to see him. They wouldn’t release his body to me. And they’re not even telling me where he is,” a black-clad Navalnaya said in the video, with the barbed wire of Penal Colony No. 3 in Kharp, about 1,900 km northeast of Moscow.

“I’m reaching out to you, Vladimir Putin. The resolution of this matter depends solely on you. Let me finally see my son. I demand that Alexei’s body is released immediately so that I can bury him like a human being,” she said in the video, which was posted to social media by Navalny’s team.

Russian authorities have said the cause of Navalny’s death is still unknown and refused to release his body for the next two weeks as the preliminary inquest continues, members of his team said.

They accused the government of stalling to try to hide evidence.