Man arrested on sexual assault charges

A Grand Island man is behind bars after allegedly being found sexually assaulting an unconscious woman.

Mahad Hersi, 30, of Grand Island, was arrested shortly after 4:30 a.m. Monday.

The roommate of the victim reportedly came home to find the assault in progress. Police report the woman then took a knife to help her keep Hersi at the home until police arrived.

Hersi was booked into the Hall County Jail.