DETROIT (AP) - A 15-year-old boy has been arrested in the sexual assault of a teenage girl in a Detroit high school. The Wayne County prosecutor's office says the boy is charged with two counts of first-degree criminal sexual conduct, four counts of third-degree criminal sexual conduct and larceny. He is accused of taking two cellphones from the girl's desk at Central Academy and High School on Oct. 8. Prosecutors say the 15-year-old girl followed the boy into a hallway to retrieve her phone when she was grabbed by the neck and forced to a back stairway where she was choked and sexually assaulted. A preliminary hearing was held Thursday in a county juvenile detention facility. A preliminary examination is scheduled Oct. 26.