The incident happened in Central Islip at 12:50 p.m. on Saturday, March 5, according to the Suffolk County Police Department.
SCPD said the altercation took place after a group of people gathered on Clift Street.
A woman and woman were stabbed and taken to a local hospital for treatment of non-life-threatening injuries, police said.
Police said gunshots were also fired at the scene, but no one was struck.
Authorities asked anyone with information about the incident to call police at 631-854-8352 or Crime Stoppers at 1-800-220-TIPS.
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