At once 10 illegal migrants were detained at night by the border guards of Mostytskyi Detachment, in Lviv region. They intended to cross illegally the state border from Ukraine to Republic of Poland. Trespassers were detected in the area of BS “Krakivets” with the help of thermal imager. Night travellers – six adults and four children were stopped15 m before the border and then were taken to border subdivision. During filtration measures it was established that they were citizens of Afghanistan. They wanted to get abroad in order to find job in the countries of European Union.