The shooting occurred around 7 p.m. on the 100 block of Federal Street, officials said. Aerial footage of the scene showed a heavy law enforcement presence near a McDonald's restaurant in the area.

The adult victim was transported to Virtua Willingboro Hospital. Both minors were flown to Cooper University Medical Center in Camden. Officials have not released an update on the conditions of any of the three, and authorities have not disclosed their ages or identities.

No arrests had been made as of Tuesday morning, and investigators have not publicly described a motive or what preceded the gunfire. Burlington City police and the Burlington County Prosecutor's Office are asking anyone with information to come forward.

A witness near the scene described a sudden emergency response in what had been a quiet evening at nearby businesses. "There were a lot of people in the parking lot, everyone in the businesses [was] outside," the witness said. "But according to the businesses, it was quiet — and then, it was just a bunch of sirens... like no one heard any gunshots or anything."

The Burlington City School District opened on a two-hour delay Tuesday because of the shooting's proximity to the high school. District officials said support staff would be available to students once buildings opened, a recognition that violence near a campus can unsettle children and families even when they are not directly involved.

The shooting adds to the toll of gun violence that communities across South Jersey continue to confront, and it raises familiar questions for residents about safety on streets that sit close to schools, parks and small businesses. County and municipal officials have not said whether the investigation points to a targeted incident or a broader public risk.

Anyone with information is urged to contact Burlington City Police or the Burlington County Prosecutor's Office.