MOSCOW: Russian police on Thursday raided dozens of offices of the opposition group behind mass protests this summer and the homes of its supporters, activists said. Leonid Volkov, a close aide to main opposition leader Alexei Navalny, said police searches were underway at more than 80 addresses in 29 cities. “This is not only offices and apartments of coordinators but also the homes of employees and volunteers,” Volkov said on Twitter. “These raids are an act of intimidation,” Navalny’s spokeswoman Kira Yarmysh said, accusing authorities of trying to deal a “massive blow” to the organization. The raids came after Russian investigators in August launched a money laundering probe against Navalny’s Foundation for Fighting Corruption, which has worked to expose officials’ questionable wealth.