MOSCOW – Hundreds of people gathered behind metal police barriers that blocked the entrance A celebration is set to take place in Moscow at a church where opposition leader Alexei Navalny, President Vladimir Putin's most vocal critic, is due to be celebrated in Moscow before his burial. With busloads of riot police and security trucks at the site, human rights groups warned mourners of the possibility of arrests and interventions. Navalny died suddenly at the age of 47 in the Polar Wolf prison colony in northern Russia – a death that his widow, Yulia Navalnaya, and other supporters described as a “homicide,” but which investigators reported was caused by “natural causes.”
