At least 400 were arrested including Russian opposition leader Alexei Navalny for protesting against law enforcement agencies, police and curbing media freedom in Moscow.
The protestors called for punishment for police officers involved in crimes and violation of human rights.
The protest took place on Russia Day.
The alleged framing of investigative journalist Ivan Golunov last week led to a national outcry among Russian journalists and human rights activists.
The protesters shouted “you are criminals”, “stop police terror” as police dragged them into vans.
They yelled: “Shame, on Russia Day! Have you forgotten the constitution?”
Russian media said, it is a case against media freedom and that the authorities are scared of the unusual media unity.
Protestors and media supporters expressed anger and disappointment on the attempts by the Russian authorities to suppress dissenting Russians.
Russian media and supporters showed unanimous display of solidarity.
Hundreds took part in the protest march.
Several journalists have been detained.
Police said the protest was unsanctioned as they sought to break up the Moscow rally.
Human rights activists say President Vladimir Putin has silenced most of his critics, sought to muzzle the media and authorities routinely silence critics with jail sentences.