“The teacher confiscated the gun, gave it to the SRO (school resource officer) and the incident was reported to police,” Middletown City Schools spokeswoman Elizabeth Beadle said.
The incident happened at 10:40 a.m. inside a classroom at the school, 2210 Verity Parkway, Middletown.
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The boy was taken to the Butler County Juvenile Justice Center, where he is being held on suspicion of felonious assault, conveyance of a weapon into the school and carrying a concealed weapon, Birk said.
Beadle would not provide information on what discipline the student could face, citying privacy laws.
The boyfriend of the boy's mother also was arrested on suspicion of child endangering, according to a Middletown police report. Jerron Dean, 29, had his arraignment continued to Nov. 1, according to online Middletown Municipal Court records.
(Staff Writer Michael Clark contributed to this report)