Newburgh police responded to St. Luke's Cornwall following reports of a stabbing on a school bus.
City Hall employees say police located a 17-year-old Newburgh Free Academy student with a superficial laceration to their lower leg.
Officials say the student was treated by medical staff at the hospital for injures that were not considered life-threatening.
Newburgh Enlarged City School District's superintendent sent a letter about the incident.
"The bus driver responded quickly to get the proper medical care needed for the student, driving directly to the hospital. Local law enforcement was notified and the district is participating in their investigation as needed," the letter states.
Officials say the students were involved in some type of altercation that occurred with two other people who boarded the bus.
According to the letter, the two people appeared to know the student.
School officials say there will be incident stress management team members at Newburgh Free Academy on Tuesday.
District officials say there will be additional law enforcement agents at the school in the morning out of an abundance of caution.
The district says it is working with law enforcement agencies as it investigates.
In a statement, the city says: "City of Newburgh Detectives are investigating this incident. Anyone with information is asked to contact Detectives at 845-569-7509.”