Big group of illegal migrants was apprehended in the evening by Ukrainian border guards together with Slovakian colleagues in the frames of joint special operation “Border-2017”. Slovakian colleagues reported about the movement of unfamiliar persons. There were 16 citizens of Vietnam, of them 12 men dn4 women. All of them made their way through the wood locality beyond the check points in the direction of Ukrainian-Slovakian border. Reaction group started to the place of detention immediately. First, in the course of operative and searching actions the border detail of BD “Guta”, Chop Detachment, detained 14 persons, and later during the locality check, two more illegal migrants. All detainees did not have any document and reported to be the citizens of Vietnam. Currently, the violators are delivered to Border Service Department for filtration measures and drawing up corresponding procedural documents. Upon their identification, the violators will be called to administrative responsibility as to Part 2 article 204-1 of Administrative Infringement Code of Ukraine “Violation or attempt to violate the state border”.