A Stanford University swimmer was caught raping a drunk, unconscious woman near a fraternity house earlier this month, Santa Clara county prosecutors say.

According to reports, 19-year-old Brock Allen Turner was arrested early Jan. 18 when two students riding bikes across campus spotted him on top of an unconscious woman. They tackled him to the ground while another student called authorities, the LA Times reports.

Turner—who swam in the 2012 Olympic trials and was reportedly heavily recruited by Stanford—was released after posting a $150,000 bail.

This week, he voluntarily withdrew from the university, which barred him from reentering the school's campus. The school also reportedly deleted his profile from the swim team's website.

On Wednesday, prosecutors are expected formally charge him with five felonies, including rape and sexual assault with a foreign object.

Image via Stanford. Contact the author at gabrielle@gawker.com