Mourners pay respects to Putin critic Navalny at Moscow church

"I'm shaking.

I feel sad and hurt.

People like him shouldn't die." Thousands queue amid heavy police presence to pay their respects to late Russian opposition leader Alexei Navalny outside the church where his funeral is being held.

The ceremony comes two weeks after Navalny's death in an Arctic prison, for which his supporters blame the Kremlin.