Other mourners lay flowers as police maintain presence at cemetery where opposition leader was buried

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The mother of the Russian opposition leader Alexei Navalny has visited his grave, a day after thousands of Russians risked arrest to pay tribute to the anti-corruption campaigner at his funeral.

Navalny, who was Vladimir Putin’s fiercest critic for more than a decade, died last month in a prison colony where he was serving a 19-year sentence for “extremism” charges largely regarded as retribution for his opposition to the Kremlin.

Western diplomats attend as chanting crowd pays tribute to opposition leader who died in Arctic penal colony

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Defying the Kremlin’s warning of arrests, thousands of mourners have gathered in Moscow to bid farewell to the opposition leader Alexei Navalny, two weeks after Vladimir Putin’s most prominent critic died in an Arctic prison.

Crowds of people chanted “Putin is a murderer” and “No to war” as they marched, under heavy police presence, to the Borisovsky cemetery where Navalny, 47, was lowered into the ground on Friday to the strains of Frank Sinatra’s My Way.