The Russian government has reportedly been caught editing a Wikipedia page relating to crashed Malaysia Airlines flight MH17 and removing references to Russian involvement. The London Telegraph reports that a Russian-language Wikipedia page about civil aviation accidents was edited from within the government-run All-Russia State Television and Radio Broadcasting Company.
Murder In The Sky: Malaysia Airlines Flight MH17
The Canberra Times: Russian media use Wikipedia to blame MH17 on Ukraine

Photo shows Malaysia Airlines flight MH17 leaving Schiphol Airport in Schiphol, the Netherlands, on July 17, 2014