Border guards of Transcarpathian BD “Kosyno”, Mukachevo Detachment, detained two illegal migrants from Mongolia. Unfamiliar persons attempted to overcome the barrage fence, border detail detected them by means of thermal imagery device. Operation reaction group arrived immediately to the place. Noticing border guards, strangers tried to run away, and law enforcers detained them in 200 meters before the border. Detainees were two men, introducing themselves as the citizens of Mongolia. The foreigners were delivered to Border Service Department “Kosyno” for drawing up administrative-procedural documents and establishing all circumstances of illegal trip of the foreigners. The further destiny of the travelers and evaluation of their actions will be performed by the court.