ATO spokesman Vladyslav Selezniovannounced on his page Facebook.
"TheATO forces conducted a set of measuresto block andnarrow the area where theterrorists are. One of thetasks of our forces is to bind force of militantsat the border between Siverskand Lysychansk. The perfect tacticsuccessfully accomplished its objectives,"Seleznev said.
He also reportedthat the ATO forces conducted aseries of activities tocreate a network ofcheckpoints, allowing to surround enemy forces,thereby, limiting militants' possibilities ofresistance.
"After the gunmen realized that the ATOforce completelylimited their room formaneuver and attacks, theywere forced to flee,abandoning Siversktown. The active phase ofthe ATO near Siversk continues," hestressed.