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PHILADELPHIA (CBS) — A 9-year-old boy died following a fall at a school Friday morning in North Philadelphia.

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The incident happened at the Hartranft School on the 700 block of West Cumberland Street around 9 a.m.

Officials say the boy ate breakfast with others inside his classroom, and when he was done, the third-grader went in the hallway to throw away his trash.

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Authorities say the boy suddenly fell, hit his head, and became unconscious and unresponsive.

The boy was then transported to St. Christopher’s Hospital for Children, where he later died.

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Philadelphia School District officials describe the fall as a collapse, but it is not yet known whether the collapse was from a medical issue or whether something else happened to the student.

“The School District of Philadelphia grieves the passing of one of our beloved students. We send our deepest sympathies, thoughts and prayers to the families and friends of the Hartranft School community in this time of sorrow,” the school district said in a statement.

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There will be behavioral health supports at the school on Saturday from 9 a.m. until noon to help the community cope with the loss.

Philadelphia police say they will investigate details of the incident but this is not a criminal investigation.

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The student’s identity is not yet known.