Russian court sentences Kremlin critic Navalny to additional 19 years in prison

Navalny was convicted on charges of extremism related to his political movement and anti-corruption foundation.
The charges against Navalny are widely seen as politically motivated to silence opposition.
Navalny is already serving a nine-year sentence in a maximum security penal colony.
The trial took place behind closed doors at the prison where Navalny is jailed.
The U.S., E.U., and U.N. condemned the verdict and called for Navalny's release.