MOSCOW, April 8 (RAPSI) – Investigators have filed a motion with the Basmanny District Court in Moscow seeking detention of a new defendant in the Bolotnaya Square riot case, the court’s spokesperson Yunona Tsareva told RAPSI on Friday.

Maxim Panfilov was arrested on Thursday and charged with participation in mass riots and use of violence against a law enforcement officer.

The march on Yakimanka Street and the rally on Bolotnaya Square in May 2012, both authorized by the officials, resulted in mass riots and clashes with the police. Dozens of people were injured, over 400 protesters were detained.

The riot organizers, Sergei Udaltsov and Leonid Razvozzhayev, were sentenced to 4.5 years in prison. Other participants received prison terms from suspended sentences to four years. Several defendants were pardoned; one is undergoing compulsory mental treatment.

The convicts’ supporters  believe that the riots were provoked by police.