now we re told that the uninjured passengers will be carted and will arrive here later. a youth pastor has been arrested for implanting pornographic images in the same work that he worked with the children. the work now missing a critical piece. reporter: this mosaic is missing a large part. but police say it contained pornographic images. the work line the walls. but norris was arrested june 2nd for possession of at least 600 images of child pornography. and today san francisco police and individuals said inappropriate images had been found on at least four norris murals including this one at sunset elementary school. you would look at these tiles and see some sort of sexual connotation to them. reporter: a source close to the investigation says the tile at sunset was discovered last week by someone cleaning the 7- year-old imagine. we have no word that any children were harmed. when an inappropriate tile is located these are being photographed. they are being do