Four illegal migrants from Palestine have been arrested in the Northern Bulgarian town of Sevlievo.
The three Palestinian men and one woman have been discovered after the unsealing of a freight truck that crossed into Bulgaria from Turkey, the Bulgarian Interior Ministry announced.
The illegal immigrants were found by the 50-year-old truck driver who immediately called the police.
In his words, the scanners at the Bulgarian-Turkish border did not detect the migrants hidden inside the truck.
The identity of the four Palestinians still has not been confirmed, the Bulgarian police say.