Ross Elementary teachers were urged to keep their students inside their classrooms after receiving a tip that a student brought a loaded firearm to school on Wednesday, a district spokeswoman said.
The school was put under lockdown at around 10:30-11 a.m.
A police investigation revealed a 7-year-old student was in possession of a loaded gun and brought the gun to school on Tuesday.
Police officers arrived at the school, located at 4890 Ross Road, at around noon Wednesday after the school went under lockdown. A school officer told the police that school officers who were told of several students were passing around the loaded gun on Tuesday.
Police spokeswoman Alyssa Moore said the loaded gun was passed around at least eight students. The students were all boys ranging in age between 7 and 10.
A 10-year-old student was reportedly the last student to be in possession of the loaded gun and he was arrested.
Though no students or teachers were injured, a FOX13 News source said the child originally with the loaded gun threatened to shoot any children who told teachers about it.
A Ross Elementary parent praised the teachers for protecting the students when the school went on lockdown.
It is unclear what type of firearm was brought to school. The police spokeswoman said it is unknown where the gun was found.
All eight elementary students were issued Juvenile Summons for Carrying a Weapon on School Property, Moore said.
In a letter sent out to Ross Elementary parents after the incident, Principal Evrette Smith said the loaded gun was found "very quickly" and that the students involved will be disciplined "in accordance with the law and MCS board policy."