Hastings High School in Westchester County, New York was evacuated after a chemical spill in class Thursday. 

The chemical got on a teacher and three students, who were immediately examined by the school nurse. No injuries were reported, and they were taken to Westchester Medical Center for additional evaluation. Everyone is expected to be fine, according to the Hastings school district. 

The school is located on Mount Hope Boulevard in the town of Hastings-On-Hudson. Students went back to class there earlier this week. The building is also home to Farragut Middle School. 

The entire building was evacuated as a precaution, and students gathered in a nearby ball field.   

Chopper 2 flew over the scene as students gathered outside.

"Very few students and the teacher were affected by that splashing of material. We immediately addressed it, dealt with it, had nurses involved. And because it was a chemical, we immediately called 911," Hastings-on-Hudson Superintendent of Schools Bill McKersie said. "Everyone is safe. Everyone is fine. Any of the students or faculty affected have been addressed."  

Before students will be allowed back into the school, the affected classroom has to be made safe. 

The school sent the following notification to parents: 

Dear Families,

We want to inform you that, due to an isolated incident in a science classroom, all students at HHS and FMS have been evacuated as a precaution. Please be assured that the safety of our students is our top priority, and proper precautions are being taken.

At this time, all students are safe. If any parent contact is necessary, you will be notified immediately.

Thank you for your understanding and support as we ensure a safe and secure environment for all students.