A woman reacts as she holds flowers and a picture of Russian opposition leader Alexei Navalny as she attends a vigil held in front of Russian embassy in Berlin after his death, Germany, February 16, 2024. REUTERS/Liesa Johannssen

A woman reacts as she holds a picture of Russian opposition leader Alexei Navalny and his family, as she attends a vigil held in front of Russian embassy in Berlin after his death, Germany, February 16, 2024. REUTERS/Liesa Johannssen

People gather during a protest, following the death of Russian opposition leader Alexei Navalny, at the Catalunya square, Barcelona, Spain, February 16, 2024. REUTERS/Nacho Doce

Supporters of Alexei Navalny stand outside the Russian Embassy following his death, in London, Britain, February 16, 2024. REUTERS/Hollie Adams

A person holds a picture of Russian opposition leader Alexei Navalny, as people gather during a protest, following his death, at the Catalunya square, Barcelona, Spain, February 16, 2024. REUTERS/Nacho Doce

A person holds flowers and a portrait of Russian opposition leader Alexei Navalny at the monument to the victims of political repressions following Navalny's death, in Saint Petersburg, Russia February 16, 2024. REUTERS/Stringer

People attend a vigil after the death of Alexei Navalny, near the Russian embassy in Lisbon, Portugal, February 16, 2024. REUTERS/Pedro Nunes

A man holds a placard that reads "Not death, but murder" as he attends a vigil held in front of Russian embassy in Berlin after the death of Russian opposition leader Alexei Navalny, Germany, February 16, 2024. REUTERS/Liesa Johannssen

People react next to the monument to the victims of political repressions following the death of Russian opposition leader Alexei Navalny in Saint Petersburg, Russia February 16, 2024. REUTERS/Stringer

A man places flowers at the monument to the victims of political repressions following the death of Russian opposition leader Alexei Navalny, in Kazan, Russia February 16, 2024. REUTERS/Stringer

A woman holds a portrait of Russian opposition leader Alexei Navalny following Navalny's death, as people gather near the Russian embassy in Paris, France, February 16, 2024. REUTERS/Gonzalo Fuentes

A man places flowers at the monument to the victims of political repressions following the death of Russian opposition leader Alexei Navalny in Saint Petersburg, Russia February 16, 2024. REUTERS/Stringer

Russians Anna and Anastasia and Scotland's Alison pay their respects to Alexei Navalny following his death outside the Russian Embassy, in London, Britain, February 16, 2024. REUTERS/Hollie Adams

Flowers and portraits of Russian opposition leader Alexei Navalny are placed at the monument to the victims of political repressions following his death, in Saint Petersburg, Russia February 16, 2024. The placard reads: "Love is stronger than fear." REUTERS/Stringer

People gather at the monument to the victims of political repressions following the death of Russian opposition leader Alexei Navalny, in Saint Petersburg, Russia February 16, 2024. REUTERS/Stringer

People take part in a demonstration near the Russian embassy in Rome, after the death of Russian opposition leader Alexei Navalny, Italy, February 16, 2024. REUTERS/Guglielmo Mangiapane

People attend a vigil held in front of Russian embassy in Berlin after the death of Russian opposition leader Alexei Navalny, Germany, February 16, 2024. REUTERS/Liesa Johannssen

A person reacts as they attend a vigil held in front of Russian embassy in Berlin after the death of Russian opposition leader Alexei Navalny, Germany, February 16, 2024. REUTERS/Liesa Johannssen

A man places flowers next to a candle and a portrait of Russian opposition leader Alexei Navalny following Navalny's death as people gather near the Russian embassy, in Paris, France, February 16, 2024. REUTERS/Gonzalo Fuentes

A portrait of Russian opposition leader Alexei Navalny is placed at the monument to the victims of political repressions following his death, in Saint Petersburg, Russia February 16, 2024. The placard reads: "Don't give up. Don't, don't give up. Alexei Navalny." REUTERS/Stringer