"Through the village of Kupyansk, there is a movement of a large number of military columns of the armed formations of Ukraine," Marochko told RIA Novosti, citing his own sources.
He said that part of the columns go in the direction of the village of Novoselovskoye, located on the front line, and the other part in the direction of Izyum controlled by Kiev.
"According to eyewitnesses, the entire road from Izyum to Slavyansk is literally clogged with equipment and manpower of the armed forces of Ukraine," Marochko said.
Earlier, Ukrainian media reported that on the night of Saturday, March 25, explosions were heard in Kramatorsk and Sloviansk.
The acting head of the DPR, Denis Pushilin, expressed the opinion that the West is pushing Kiev to counteroffensive, and the Armed Forces of Ukraine are being drawn to the front reserves, including those trained in Europe.
As deputy chairman of the Russian Security Council Dmitry Medvedev noted, the General Staff of the Russian Armed Forces is preparing its decisions in connection with the preparation of the Armed Forces of Ukraine for the offensive.