In the Muslim - dominated regions of the Tatarstan republic and the surrounding Volga region , tensions between Muslims and Russian Orthodox believers occasionally emerged .
At the international level , the ROC has traditionally pursued interfaith dialogue with other Christian groups .
In the Muslim - dominated regions of the Tatarstan republic and the surrounding Volga region , tensions between Muslims and ROC   believers occasionally emerged .
At the international level , the ROC has traditionally pursued interfaith dialogue with other Christian groups .