(KMOV.com) -- Metro-East Police are investigating a possible sex assault at a high school.
Belleville Police said the alleged crime happened at Belleville East High School.
Authorities said they are meeting with the female victim at the hospital and have a 17-year-old boy in custody that is suspected to be involved.
Police have not released any other information.
Stay with News 4 and KMOV.com for further updates.