All public schools in Winchester, Massachusetts, are closed Friday due to a chemical spill at the high school.

Superintendent Frank Hackett said in a message to the district Thursday night that they immediately contacted the fire department after discovering the spill in a storage cabinet in one of the chemistry prep rooms at Winchester High School that evening.

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The Winchester Fire Department closed the building at 80 Skillings Road and called in a Hazmat team that was on site with the Department of Environmental Protection and the Winchester Health Department to coordinate containment and decontamination of the affected area, Hackett said.

Classes were canceled for the high school due to the uncertainty around

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