20 injured in US high school stabbing
Westmoreland County emergency management spokesman Dan Stevens said not all of the 20 injured were cut by the knife, though most were.
Some suffered scrapes and cuts in the mayhem that ensued at Franklin Regional High School in Murrysville.
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Hide AdMr Stevens said it does not appear that any students suffered life-threatening injuries. He said all the injured are between 14 and 17-years-old.
The suspect, a male student, was taken into custody and being questioned.
Mr Stevens said the suspect used a knife, though he did not say what kind or why he attacked the others.