A 9-year-old boy has been injured after falling through a plastic skylight onto a concrete floor at a closed Northern California elementary school.

Novato police Sgt. Sasha D'Amico tells San Francisco television station KPIX (http://cbsloc.al/1Or06tD ) that the boy was playing Sunday on the roof of the school in the suburb north of San Francisco.

The extent of the boy's injuries and his condition weren't known Monday morning.

D'Amico says the boy's parent was nearby when he fell but apparently didn't know the child was on the roof.

D'Amico says the parent likely drove the boy to a hospital, where staffers called police.

Novato Unified School District spokeswoman Leslie Benjamin said the district didn't have details about the incident.

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Information from: KPIX-TV.