A major fire broke out Tuesday around 21 p.m. on the HEC campus in Jouy-en-Josas in the Yvelines. The fire was extinguished shortly before 23 p.M. and did not cause casualties. 150 people were evacuated and the fire spread from 400 to 500 m2 in a building of 800 m2, said a source close to the file. Videos and photos posted on X (formerly Twitter) show a building ravaged by large flames and a thick plume of black smoke rising.