According to the DPA, citing security sources, there is no reason for this, but an attack using explosive devices must be taken seriously

News 18:00 April 11, 2017 FSB Director A. Bortnikov: Migrant workers are beginning to form the main backbone of terrorist groups in Russia Migrant workers are beginning to form the main backbone of terrorist groups in Russia. FSB Director Alexander Bortnikov stated this at a meeting of the National Anti-Terrorism Committee. According to him, we are talking about CIS citizens, some of them were trained and participated in hostilities in Syria and Iraq.

In the circle of LIGHT 20:08 , April 11, 2017 Away Alexander Shumilin, Head of the Center for Europe-Middle East, Institute of Europe, Russian Academy of Sciences Vladimir Sukhoi international journalist, Americanist Presenters Yuri Kobaladze , Svetlana Sorokina Your browser doesn't support HTML5 audio S. Sorokina - Hello. This is the “In the Circle of Light” program. Yuri Kobaladze, Svetlana Sorokina are here. Y. Kobaladze - Hello. S.