An image of the truck from a video by Kronen Zeitung.

The truck was found parked near the Hungarian border, and according to reports, it contained at least 20 dead, but authorities said the total count of deceased may be as high as 50.

Cabinet Chief János Lázár, commenting on the tragedy, said today at his weekly press conference that the victims were probably smuggled from Hungary, and that “probably Hungarian perpetrators were also involved in the human trafficking action”.

Hans-Peter Doskozil, director of police in the eastern Austrian state of Burgenland, said on Austrian state TV that the partly decomposing bodies were discovered after police found the vehicle on the side of the A4 highway and opened the cargo door.