A demonstration in Moscow's Triumfalnaya Square, in defense of the Russian Constitution's Article 31 guarantee of the right to peacefully assemble, occurs on the last day of every month with 31 days in it, referred to as "Strategy-31."
Writer and leader of the unregistered Other Russia party Eduard Limonov was arrested Dec. 31 with about 25 other demonstrators, the Russian news agency RIA Novosti reported Tuesday.
"About 50 people took part in the unsanctioned action in Triumfalnaya Square, which is one-fourth the number that took part on December 31 last year," a police spokesman said.
"All detainees have been released," the Interior Ministry said Tuesday.
Notable deaths of 2014 [PHOTOS]