Security has been dramatically tightened around the sanctuary built around the shrine, where the Virgin Mary is said to have appeared in a grotto to Bernadette Soubirous, a poor shepherd girl, in 1858.
Ap svētvietu, kur jaunava Marija 1858. gadā esot grotā parādījusies nabadzīgai ganei Bernadetei Subirū, bija noteikti ārkārtīgi strikti drošības pasākumi.