The funeral of Russian Opposition leader Alexei Navalny, who died earlier this month in a remote Arctic penal colony, will take place on Friday in Moscow, his spokesperson said.

His funeral will be held at a church in Moscow's southeast Maryino district on Friday afternoon, Kira Yarmysh said Tuesday. The burial is to be at a nearby cemetery.

Navalny died in mid-February in one of Russia's harshest penal facilities. Russian authorities said the cause of his death at age 47 is still unknown, and the results of any investigation are likely to be questioned abroad.

Many Western leaders have already said they hold Russian President Vladimir Putin responsible for his death.