It happened around 6:30 Saturday night near 3rd and Vine streets.
The exact circumstances surrounding the shooting are still unclear.
One of the victims, 23-year-old Brian Burnett, died from his wounds at Cooper Hospital.
Officers found the other victims two blocks away on the 600 block of 4th Street.
A 17-year-old male was shot in the leg. He was taken to the hospital under observation.
A 18-year-old was shot in the chest and is listed in critical but stable condition.
No word on any arrests or on a motive.
Anyone with information is urged to contact the Camden County Prosecutor's Office at 856-225-8523, Camden County Police at 856-757-7420.