Several Twitter accounts, such as @DarthPutinKGB, which parodies Putin, and @SovietSergey, which mocks Foreign Minister Sergey Lavrov, have been unavailable since yesterday.
The parody Putin account had attracted more than 50,000 followers before it was shut down. The link to the account said it was suspended.
Lavrov's parody account along with two others mocking the Russian Embassy in London and the Russian ambassador were restored and available to users after a reported suspension yesterday.
Social media users launched the #NoGulagForDarthPutinKGB hashtag on Twitter in protest.
