Russian anti-corruption campaigner critical of Putin and subjected to physical attacks and imprisonment

Alexei Navalny, who has died suddenly aged 47 while in prison, was Russia’s best-known campaigner against high-level corruption. For many years he was the leading critic and opponent of President Vladimir Putin and his political party, United Russia.

Repeated arrests, jail sentences and physical assaults did not deter Navalny from digging up financial scandals, which he published on his blogs and X feeds as well as YouTube. In a 2011 radio interview, he described United Russia as a “party of crooks and thieves”, which became a powerful and popular mantra on social media and at political protests.