An elementary school was evacuated, a teacher sent to the hospital and her class quarantined Thursday after the woman opened an envelope containing white powder that was later found not to be hazardous, authorities said.
The teacher reported some skin irritation on her hands and forearms, police said.
A hazardous materials team tested the powder and determined it was not anthrax or any other hazardous substance, said David Wyche, spokesman for the Burlington County Board of Freeholders.
The other 425 students at Garfield East Elementary School were evacuated and taken to a nearby school around 10:40 a.m., 911 supervisor Carol Holland said.
Authorities did not immediately know what the substance was or who sent it, Holland said.
It also wasn’t clear how many students were being kept in the teacher’s class.