Two teen boys were slashed outside a Queens public high school in broad daylight Wednesday, cops said. 

The victims, 15 and 16, were knifed on their arms around 9:45 a.m. inside a park right next to Newcomers High School on 41st Avenue near 28th Street in Dutch Kills, police said. 

The older victim was taken to Weill Cornell Medical Center, where he was listed in stable condition. 

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But the younger teen was uncooperative and refused medical attention, cops said.  

No arrests were immediately made, and police did not have any information on a suspect by the early afternoon. 

The motive for the assault also remained under investigation.