ORO VALLEY, AZ - A teacher at Ironwood Ridge High School is being accused of having an inappropriate relationship with a female student.
Oro Valley police say the department's school resource officers first began investigating Robert Brush in March. At the time, there wasn't enough evidence to make an arrest.
This week, investigators received additional information, and the 31-year-old marketing and media arts teacher was taken into custody at the school. He was booked into the Pima County jail on one count of sexual misconduct with a minor.
It's not clear if Brush has an attorney.
Police say the investigation is in its preliminary stages and additional charges could be pending.
School district officials say Brush was placed on administrative leave. He has been with the district since August 2012.