Russia's Interior Ministry has revealed that three volumes of investigation documents from the so-called "Russian Rambos" murder case have been stolen.
Officials in the Far Eastern Primorye region said that a probe has been launched into the reported theft of the files from a Vladivostok court.
The disappearance of the files comes just weeks before jury selection in the trial was due to begin.
The case involves six local young men who have been charged with three counts of murder -- including of police officers -- attempted murder, robbery, theft, and illegal weapons possession.
The group, also known as the "Primorye Partisans," was captured in 2010 after thousands of law enforcement agents took part in one of the largest manhunts in Russia in recent years.
Based on reporting by ITAR-TASS and Interfax