MOSCOW (AP) — Kremlin officials and Russia's opposition have gathered to pay tribute to prominent human rights activist Lyudmila Alexeyeva, who died over the weekend.

Alexeyeva, a staunch and uncompromising rights advocate, died in Moscow on Saturday at the age of 91. She made a name for herself in the 1960s and '70s protesting the treatment of Soviet political prisoners. She returned to Russia in 1993 after spending more than two decades in exile, and continued to be an energetic champion for human rights.

Friends, family as well as political figures including President Vladimir Putin and opposition leader Alexei Navalny on Tuesday came to pay their respects to a community center in central Moscow where the wake was held.