NEW YORK (CBSNewYork) — It was a dangerous day Tuesday in and around New York City schools.

As 1010 WINS reported, the day included a slashing outside of a Bronx school, a bullet brought to a Harlem classroom, and knife brought to a different Bronx school.

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A slashing took place at 2:30 p.m. Tuesday, outside of Bronx Arena High School on Colgate Avenue in the Soundview section.

“I saw a lot of commotion. I heard, I don’t know what the fight was about, but it was a lot of commotion after the stabbing,” Tina told 1010 WINS’ Al Jones.

Police said a 16-year-old was slashed and suffered a laceration to his arm. He was rushed to Jacobi Medical Center.

Harold Ross said the area doesn’t see much crime.

“Cause we are not far from the police station. You know the 40th, so like I said, senior citizen and I don’t fear going out at night,” he said.

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The victim was in stable condition, and police were investigating and reviewing surveillance footage.

The Daily News has also reported that a 14-year-old boy was in custody after allegedly bringing a knife to Urban Assembly School for Careers in Sports in the Mott Haven section of the Bronx.

School officials said they found the steak knife on the teen just before noon.

“There is zero tolerance for weapons of any kind in our school buildings. We work in close partnership with the NYPD and this incident was swiftly and safely addressed. We have supports in place for students to use as resources when faced with conflicts before succumbing to these types of alarming actions. The detailed protocols that are in place were followed and we’ll be providing ongoing support to the school community. Families were notified of the incident,” the Department of Education said.

The Daily News also reported that a student brought a bullet to Success Academy on 114th Street in Harlem.

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The school was placed under a lockdown and automated calls were made to parents.