It's Russia in general!! Most of the samples were from athletics and weightlifting. Many have been re tested and obtained positive while report has emerged that most negative samples were obtained by manipulation.
Russian Olympic Chief has admitted its a "very serious issue" and the chances of Russia participating at next year Olympics are very less. Will be interesting to see how federations like the UWW, FIG, ICF ISSF respond because these are very close with Russia, especially ISSF lead by a Russian.
As of now, Russia is banned in athletics and the ban may stay until 2021 at least.