Thirty illegal Indian immigrants travelling in "inhuman conditions" were stopped while crossing the French Alps in a small truck, border police said on Friday.
"They were packed together, standing up, in inhuman conditions in an area of less than six square metres. It was horrible," said Michel Drezen, head of the border police in France's Haute-Savoie region.
"The officials who found them were deeply shocked."
The illegal immigrants -- aged between 16 and 30 -- were discovered on Wednesday near Mont Blanc during a routine check, he said, adding: "They were in good health despite everything."
The would-be immigrants were mostly from the northern Indian state of Punjab. Seven of them were aged under 17.
Each of them paid about 10,000 euros (14,500 dollars) to be transported to Belgium from Rome, where they landed with fake visas.