Two teens were injured at an Upper East Side high school after one of the kids pulled a knife during a fight Friday morning, police said.

The fight broke out just after 10:30 a.m. at the East Harlem Scholars Academy Charter High School on East 96 Street, police and sources said.

At one point, one of the 16-year-olds pulled a knife and stabbed the other in the side, cutting his hand in the process, sources said.

Both were taken to an area hospital and arrested, cops said.

The stabbing did not happen in New York City schools or involve public school students.

The Department of Education splits the facilities at 320 E. 96 Street between the High School for Climate Justice and the charter school.