A great number of illegal migrants from Vietnam attempting to get illegally to Slovakia were detained at night by the border guards of Chop Detachment. The offenders were revealed after alarm system had been actuated. Reaction group of the BD “Onokivtsi” started to a place of possible illegal cross of the state border. The officers managed to stop the violators after overcoming the barrage fence. The detainees, being in composition of 12 men and 4 women, had no any documents and introduced themselves as the citizens of Vietnam. Illegal migrants were delivered to Border Subdivision in order to conduct filtration actions and draw up appropriate procedural documents. After their identification and establishing all circumstances they will be called to administrative responsibility.