WEST HILLS (CBSLA.com) — Parents want to know why they weren’t notified when two girls broke their arms within days of each other while participating in an after-school program at an elementary school in West Hills.

Maria Jurupe, whose daughter has been enrolled in the Hamlin Street Elementary School program for four years, was surprised to learn the children were injured.

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“This is the first I’ve heard and it’s really frustrating,” she said. “They’re supposed to send a notification if something like that happens, especially in after-school care. We have to be at work…that’s why we leave them here, so I don’t like that.”

The Los Angeles Unified School District said the first incident happened last Thursday when a fourth-grade girl was hurt when she was playing with a boy.

The district said one of the supervisors of the after-school program was terminated due to lack of supervision after another student suffered broken bones.

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Antonella Alvelo, a fifth grader at Hamlin Street Elementary, told KCAL9’s Serene Branson that she was aware of at least one of the girls’ injuries.

“There was a little boy and he tried to pick two girls up. One of the girls fell,” she said.

An LAUSD spokesperson, who declined an on-camera interview with Branson, said they’re examining whether that incident was more than horseplay, but mentioned the child was disciplined.

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Hamlin Street administrators and school police are investigating the situation.