A university campus library in Lyon caught fire on Thursday; the blaze was followed by an explosion, according to witnesses. A huge cloud of smoke filled the university library building. According to the local authorities, the explosion was of “accidental origin”.
The roof of the university science library in Lyon was rocked by a powerful explosion Thursday, shortly after 9 a.m. local time.
Restoration work had been ongoing on the roof and a gas bottle explosion is believed to be what started the fire, according to police.