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Cops: Teen threw boy, 9, off Bronx roof

A 17-year-old boy has been arrested after police say he admitted to throwing a 9-year-old boy off the roof of a Bronx apartment building Friday night, critically injuring him.

The 9-year-old boy was found on the pavement unconscious with severe body trauma in front of the five-story building on Nelson Avenue in Morris Heights at around 8:30 p.m., authorities said. He was taken to Columbia Presbyterian Hospital where he is listed in critical condition.

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On Saturday, police charged 17-year-old Casmine Aska with attempted murder.

According to a police source, Aska told investigators that he threw the 9-year-old boy off the roof after they got into a fight. The boys are not related, but live in same the building.

It was unclear what started the fight or how the two ended up on the roof.

Aska's family did not respond when a reporter knocked on the door to their apartment.