A Fulton (Ill.) High School teacher has been arrested on charges she had a sexual relationship with a 16-year-old student.

Nicole R. Letcher, 26, an English teacher, was suspended until further notice, River Bend School District Superintendent Jane M. Bauer said Thursday in a statement.

Letcher was being held Thursday at the Whiteside County Jail on a $50,000 bond, a jail official said.

She is charged with six counts of aggravated criminal sexual abuse of a minor, a Class 2 felony. Each count is punishable in Illinois by three to seven years in prison.

The Fulton Police Department received a report Wednesday from the school district that allegations had been made of an improper

relationship between a student and a teacher, according to a news release from Lt. Donnie Pridemore.

The department opened an investigation and arrested Letcher.

She is accused of criminal sexual activity beginning in December, court records show. Each felony count is connected to a different month lasting through May.

The victim is identified in court records only by initials. The victim’s gender was not made available.