The Sacramento Bee reports that the incident occurred at Ellen Feickert Elementary School in the ElkGrove Unified School District.
In a letter to families, the district said students were eating in the cafeteria on June 5 when a metal register plate struck one student directly and injured two others.
Emergency personnel responded, and all three pupils were taken to a hospital for evaluation.
Staff and outside safety inspectors were investigating the equipment failure, the district said.
"We are committed to identifying and resolving any issues before students return to that area of the building," the district said in the letter.
Mike Kennedy has been writing about education forAmerican School & Universitysince 1999. He also has reported on schools and other topics for The Chicago Tribune, The Kansas City Star, The Kansas City Times and City News Bureau of Chicago. He is a graduate of Michigan State University.
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