BALDWIN, N.Y. (CBSNewYork) — A quick-thinking lunch monitor made a shocking discovery at a Long Island school earlier this week.

The employee at Meadow Elementary School in Baldwin found a loaded handgun inside a 10-year-old’s boy’s lunch bag on Monday.

A lunch monitor discovered a 40-caliber handgun inside a 10-year-old student’s lunch bag inside Meadow Elementary School on March 25, 2019. (Photo: CBSN New York)

Police said the monitor discovered the 40-caliber weapon after noticing that the boy’s fabric bag appeared to contain a heavy object.

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Parents at the school were shocked the child was ever able to leave an adult’s supervision with the weapon.

“They should be in jail right now, seeing a judge, being on bail,” Kelvin Lastique said. “Apparently, it was an uncle. Whoever was in custody of that child should be in jail today.”

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The child was charged with criminal possession of a weapon on school grounds and will appear in family court next week.

Investigators believe the boy may have taken the gun from a relative’s home.