A 25-year-old Haskell Indian Nations University student was arrested Saturday afternoon after an alleged sexual assault Saturday morning.

According to Lawrence Police Sgt. Randy Roberts, the incident occurred between 3 a.m. and 6:30 a.m. on the Haskell campus. The victim, a 21-year-old Haskell student, claimed she was sexually assaulted by the suspect.

The suspect was arrested on charges of aggravated criminal sodomy, rape, criminal restraint and theft about 4:15 p.m.

Roberts said police detectives were working on the case.