Russian police raided the Moscow offices of jailed Kremlin critic Alexei Navalny's group on Wednesday and came to search several other properties, including a flat where his wife was, one of his allies said.
The searches come after tens of thousands of Navalny's supporters took to the streets on Saturday to call on the Kremlin to release him from jail where he is serving a 30-day stint for alleged parole violations that he denies.
Police had said the protests were illegal and detained close to 4,000 people. More than a dozen criminal cases have been opened. Navalny's allies plan to hold another rally this Sunday.
Ivan Zhdanov, director of Navalny's Anti-Corruption Foundation, said police appeared to be conducting the searches as part of an investigation into calls made to hold a protest that flouted restrictions imposed over the COVID-19 pandemic.