Police tell Action News the 4-vehicle crash happened along Route 130 and Cooper Street in Edgewater Park at about 1:00 p.m.
"There're bodies everywhere. There's a girl on the sidewalk, there's another in the middle of the street, there's a kid trying to crawl out. It was ugly," witness Moz Gonzales said.
At first glance, it looked like a bomb went off.
Among the four vehicles invovled were a white minivan, a Mercedes sedan that appeared to have taken out a traffic signal, and a large black Chevy Tahoe turned upside down its roof crushed.
"There was a little boy on the ground, about 4-years-old, and his arm was jammed in the middle of the door and the truck is laying on top of him and he can't get out, and saying to us, 'Don't let me die! Don't let me die!' and they finally got the truck jacked up enough to get him out," witness Bill Canuli said.
Officials say a woman, age 62 and an occupant of the van, succumbed to her injuries. 11 other people were injured, with at least two being flown to Cooper University Hospital.
Among the injured was a woman waiting under a newly installed bus shelter that was destroyed by the impact.
Authorities are saying nothing about the direction of travel, or who if anyone is at fault.
The driver of the fourth vehicle, a green van, was dazed but uninjured.
"It happened so quickly and when we looked a man was rolling out of his car, I don't even know what car hit what car, but all I know is we got hit on the side of the vehicle," the victim said.