Lawyers Mark Feygin and Nikolay Polozov announced this on Twitter.
Russian investigators have released Ukrainian MP and Ukraine's delegate to PACE Oleksiy Honcharenko, who was detained in Moscow on Sunday during a march in memory of recently killed Russian opposition politician Boris Nemtsov.
This was announced by lawyers Mark Feygin and Nikolay Polozov on their Twitter pages.
https://twitter.com/Moscow_advokat/status/572104630496313344
https://twitter.com/mark_feygin/status/572104845131431937
Honcharenko was held and interrogated at the Kitay-Gorod police station in Moscow.
As the Investigative Committee of the Russian Federation reported earlier, Honcharenko was interrogated by an investigator from the Main Investigation Department of Russia's Investigative Committee, who is investigating a criminal case under Part 3 of Article 30, Part 1 of Article 105, Clause "Z" of Part 2 of Article 117 of Russia's Criminal Code on charges of an attempted murder and tortures of a Russian citizen during riots in Odesa, Ukraine, on May 2, 2014.