Border guards of BS “Goronglab” of Mukachevo Detachment noticed a group of persons moving towards the state border with the help of thermal imager. Unknown persons travelled along the field intending to avoid the check point. However, four “travelers” without documents were apprehended by the border guards in the distance of 2 km before the border. During the interview they introduced themselves as the citizens of Vietnam. Detainees were delivered to the border subdivision with the aim to conduct the verification actions and process administrative-procedural documents.