Officials in Chicago said that someone brought a "stink bomb" into an elementary school on Thursday morning, causing three students to be hospitalized.

The incident happened at Fairfield Elementary School in Chicago, according to FOX 32. Ambulances responded to the school at around 9:46 a.m. after someone carried a nuisance spray or stink bomb into a classroom, according to a Chicago Fire Department spokesperson.

18 students and one teacher were exposed to the nuisance spray or stink bomb.

Three students were taken to a local hospital, with two being in good-to-fair condition and the other in fair-to-serious condition, according to officials.

UTAH MAN SHOT SEVERAL TIMES BY POLICE DURING TRAFFIC STOP AFTER OFFICERS ALLEGEDLY SEE GUN: VIDEO

Fairfield Elementary School outside

The incident happened at Fairfield Elementary School in Chicago, Illinois, according to FOX 32. Ambulances responded to the school at around 9:46 a.m. after someone carried a nuisance spray or stink bomb into a classroom, according to a Chicago Fire Department spokesperson. (Google Maps)

Thirteen other students and the teacher were evaluated by first responders at the school, but declined to be taken to the hospital.

CLICK HERE TO GET THE FOX NEWS APP

Ambulances took the students taken to a local hospital out of largely "precautionary" measures, officials said.