Police say all five victims are in stable condition after the stabbings early Saturday outside the Deco club in lower Manhattan.
Twenty-one-year-old Mario Olmedo was arrested on assault and weapons possession charges after police said he slashed a 23-year-old man in the head and a 21-year-old woman in the neck.
A woman and two men were stabbed in the later incident.
Olmedo's home telephone number isn't in service, and police weren't certain whether he has a lawyer.
A call and e-mails to the nightclub weren't immediately returned Saturday.
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