An eighth-grader faces expulsion after admitting he put urine in a teacher's coffee pot, officials said.

The Wilson Middle School teacher noticed that the coffee had an unusual odor Friday and reported it to the principal, Muncie Community Schools officials said. A student who overheard classmates discussing it also reported the incident to officials.

Urine was found in the locker of the eighth-grade boy, who admitted to putting some in the coffee, authorities said.

The eighth-grader has been suspended pending a recommendation for expulsion, said Assistant Superintendent Steve Edwards.

"This type of student behavior will not be tolerated," Wilson principal DiLynn Phelps and Superintendent Marlin B. Creasy wrote in a letter to parents. "No student will be permitted to deliberately attempt to cause bodily harm to any other student, teacher or staff member."