Bassick High School in Bridgeport was evacuated and dismissed early Thursday after police say pepper spray was accidentally discharged inside of the building.

Police say the incident happened at 8:15 a.m. at the school.

The school was dismissed at 11:25 a.m. 

Officials say the building was evacuated and police say at least 30 students were affected by the pepper spray but suffered non-life-threatening injuries. 

Police did not say how the spray ended up inside of the school or how it was discharged.