Three children have been treated for minor injuries after a police officer's gun accidentally fired during a school safety demonstration in California.
Tamrin Olden, the Chino Police Department's crime prevention supervisor, said the gun went off during a safety presentation at Newman Elementary School.
Fire Department spokeswoman Massiel Ladron De Guevara said three students were treated for cuts and scrapes but they were not hit by gunfire.
Two were taken to hospitals and one was released to parents.
Other details of the incident remain sketchy. A police spokesman said authorities are still trying to sort out what happened.