Residents of Sparrow Drive, Aranguez, subdued a knife-wielding man on Saturday night, minutes after he attacked two men, police said.
Police said two men, ages 21 and 23, were walking on the road, when they got into an argument near a Play Whe booth.
The man pulled out a folding knife and stabbed both men in their backs and shoulders.
The men ran away, but were chased by their attacker, before he was caught and subdued by residents.
Barataria Police were called in and arrested the 23-year-old suspect.
The folding knife was seized by police as part of the enquiry.