The encrypted email service said it has seen a significant drop in traffic from Russia in the past week.

The Russian government has blocked another encrypted email provider, according to a Russian digital rights organization and the email provider.

Last Wednesday, Roskomsvoboda, which describes itself as “the first Russian public organization active in the field of protecting digital rights and expanding digital opportunities,” reported that an unknown Russian state organization ordered the block of Skiff, an email and cloud service provider launched last year. Since then, Skiff’s chief executive Andrew Milich shared evidence of the block with TechCrunch.