Year one and two students were inside the classroom when the bullet smashed through the glass at Macquarie Fields Public School just after 12.45pm yesterday.
Parents told 9News they were frustrated by a school letter sent out as it didn’t say a bullet had been shot into the classroom.
“I am absolutely mortified, I can’t comprehend that it has happened at all,” one mother told 9News.
“I am petrified for my daughter to go to school now… I kind of feel like America is coming to Sydney.”
The NSW Police ballistics team is examining the bullet to determine what kind of firearm it was shot from and who may have shot it.
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Yesterday Detective Superintendent Grant Healey labelled it a “totally reckless act”.
“For the little kids at the time, they just heard a smashed window,” Healey said.
“Early investigations revealed the projectile might have come from some distance away,” Healey said.
“The bullet has come into the classroom but it has been stopped by the blind so it hasn’t come into the classroom with enough speed or velocity, it is just enough to smash the window.”
Investigations are continuing.