An inappropriate "child pornography" picture published in a Big Bear High School yearbook depicts a 17-year-old male student with his hand inside the clothing of a 15-year-old female student, officials said Thursday.

Cindy Bachman, a spokeswoman for the San Bernardino County Sheriff's Department, said the students appear in the background of the photo and "are not the intended focus of the photograph." The picture was taken at a school dance.

However, authorities said they were concerned enough about the picture that they demanded that all Big Bear High School students return their 2011 yearbooks to the school so that the photo can be removed or covered up. They also warned that those possessing the photograph risk criminal charges involving the possession of child pornography.