Two Jersey City high school students were seriously injured when they were attacked during their lunch break.

It wasn't clear what sparked Tuesday's attack, which happened around noon at a site near Ferris High School. Officials say the 16- and 17-year-old victims were allowed to be off school grounds at the time.

Police spokesman Stan Eason says one victim was stabbed in the shoulder with a sharp object, believed to be a knife. The other was hit in the head with a baseball bat, but their injuries aren't considered life-threatening.

Eason says at least four young men took part in the attack, and at least one is believed to be a Ferris student. Police believe the attack wasn't random and the teens knew their assailants.

No arrests have been made.

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