A loaded gun was found at Calverton Elementary/Middle School in West Baltimore on Wednesday, according to city school officials.
Acting on an anonymous tip, the school administrators and police found a loaded gun inside a student's book bag.
"Students were not threatened. The gun was immediately confiscated," Karen Parks, a city schools spokeswoman, said in a statement.
Parks said the school system will follow its usual discipline policies in connection with the incident.
School officials did not say how old the student was or how they got the tip.