According to the media outlet, the illegal passengers were discovered in the department of Var in the Provence-Alpes-Cote d'Azur region of southeastern France.
The migrants, who were reportedly from Iraq, Pakistan and Afghanistan, felt unwell due to poor transportation conditions, the channel added.
Meanwhile, according to Le Figaro newspaper, none of the migrants needed hospitalisation.
French police continue to investigate how the men ended up in the truck.