Police officials in Frankfurt on Thursday said they found violent and degrading videos during last weekend's raid of an Islamic school belonging to a Moroccan cultural association. Prosecutors had said that the raid occurred at the al-Taqwa mosque on Sunday after a 9-year-old told her teacher that she and other children had been shown violent videos calling for a "holy war against unbelievers," including one video showing a beheading. "What we saw on the video is, in our view, inciting people," said Frankfurt police spokesman Peter Liebeck. "It glorifies holy war." Liebeck said that someone claimed to have bought the video at the Frankfurt mosque, which is why the search was conducted. Police said it could take weeks to fully investigate the confiscated data, mostly because the Arabic texts have to be translated into German.