LOS ANGELES (CBS) — A female student who was stabbed Friday at South East High School during a lunchtime argument has died, a sheriff’s official said.

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The girl died sometime this evening, said Deputy Aura Sierra of the Sheriff’s Headquarters Bureau. Authorities confirmed Saturday that the victim was 17.

The stabbing occurred at about 11 a.m. at the South Gate high school located at 2720 Tweedy Blvd., county fire Inspector Matt Levesque said.

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Sheriff’s officials confirmed reports that a possible bomb threat at St. Francis Medical Center this evening was related to the stabbing.

Officials have described the girl’s assailant as an ex-boyfriend. Friday evening he was identified as 18–year-old Abraham Lopez.

A male student and female dean intervened in the stabbing and also found themselves stabbed. Their injuries are non life-threatening, said officials. In the melee a school police department officer was also reportedly injured but he suffered a back injury and not a stab wound.

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