Kira Yarmysh, his spokeswoman, posted on X that a service for Navalny would be held on Friday at 2 pm Moscow time (1100 GMT) in the Church of the Icon of the Mother of God in the Moscow district of Maryino. She told people to get there early.

Navalny would then be buried at the Borisovskoye cemetery, she said.

His allies have accused Putin of having him murdered because the Russian leader could allegedly not tolerate the thought of Navalny being freed in a potential prisoner swap.

The Kremlin, which casts Navalny and his supporters as U.S.-backed extremists, has denied state involvement in his death and said it is unaware of any agreement to free Navalny prior to his death.

Navalny’s death certificate, according to supporters, said he died of natural causes.

His mother accused the authorities of trying to blackmail her into holding a private funeral for her son by initially withholding his body, an assertion the Kremlin called absurd.

Navalny’s allies had been looking for a hall to accommodate his supporters at a farewell ceremony, but said on Tuesday they had been refused everywhere.