A loaded gun was found at an elementary school in Dallas, officials say.
Dallas ISD police recovered the weapon at William B. Miller Elementary School Tuesday morning.
Preliminary reports reveal a group of 9-year-olds went into a restroom and one of them had a gun.
Students later told a teacher about the gun. That's when another student reportedly opened a school window and threw the firearm outside, according to Andre Riley with the Dallas ISD.
Dallas ISD police say they were not able to charge anyone with a crime because no one was in possession of the gun when they arrived at the scene.
The incident is under investigation.
School officials sent the following letter home with students Tuesday afternoon.