A citizen of the Russian Federation, Dmitry Tlyustangelov, published in his page in “VKontakte” social network a video that shows that a multiple launch rocket system BM-21 Grad located in the territory of the Russian Federation fires shots towards Ukraine, namely, Sverdlovsk and Chervonopartyzansk. The video was recorded in Gukovo, Rostov region.
Panoramic view of the area can be seen here.
Besides, there are more videos of how MLRS BM-21 Grad fires from the territory of the Russian Federation (from that very city of Gukovo): the video below was posted by a citizen of the Russian Federation, Denis Malutin, in his page in “Odnoklassniki” social network.
Source (Russian).