At least 20 migrants were found dead in a truck on Thursday in eastern Austria, apparently from suffocation. Police said the number could be as high as 50.
The food-delivery truck was found along Austria's A4 autobahn near the town of Parndorf, which is not far from the border with Hungary and Slovakia.
"We can assume that it could be 20 people who died. It could also be 40, it could be 50 people," an unnamed police official was quoted by Reuters as saying.