Censor.NET reports citing bmpd blog on LiveJournal.
GAZ-3937 "Vodnik" high-mobility multipurpose military vehicle was produced in small batches by the Russian Federation "GAZ Group" at Arzamas Engineering Works JSC in the 1990s and 2000s, and were put in service with the Russian Ministry of Defense (the Strategic Missile Forces and the commandant detachments in particular). These vehicles have also been delivered to Uruguay (48 units) to cover the Soviet Union's debt. Obviously, "Vodnik" appeared to be generally ineffectual equipment that's why it was being withdrawn from the service as well as Vistrel and Dozor armored vehicles during the last few years. Evidently the "LPR" gets them now.
GAZ-3937 "Vodnik" armored vehicle as part of the "LPR" forces in Krasnodon (Luhansk region) Jan. 10, 2015 (Screenshot from YouTube footage (c)).
Video from 1stvc.net