JERSEY CITY, N.J. (CBSNewYork) — Four people were shot, including a 12-year-old boy, when gunfire erupted in Jersey City late Sunday night and now, police are looking for anyone who may have been involved.

“You heard ‘pop, pop, pop,’ and then you heard it again,” witness Lisa Graham tells CBS2’s Marc Liverman. “And then you just see people running.”

It happened around 8:45 p.m. outside a home on Wilkinson Avenue in the west side of Jersey City.

Graham and her mother Veena say they will never forget the sound.

Four people were hit, including the 12-year-old who was shot in the stomach, 1010 WINS’ Glenn Schuck reported. Authorities said a 16-year-old was also hit.

“All you saw was chaos, that’s all you saw,” Veena said.

Graham says two of her stepchildren were playing outside next to their home on Wilkinson Avenue Sunday when all of a sudden they heard the gunshots tear through the night.

All four victims were taken to Jersey City Medical Center, where they are expected to recover, Schuck reported.

Police spent most of the night looking for evidence, while the stepmother of five finds it difficult to even imagine the pain of the 12-year-old victim’s mother’s pain.

“He’s 12-years-old,” she said. “I know she’s in pain just like he’s in pain. He hurting, she’s hurting. So for her to see her son laying in the hospital like that. I know she ain’t right.”

The community is now asking the city for help and an increased police response. Mayor Steven Fulop tweeted Monday, “This is hard 4 residents and saddens me after weeks of progress. We devote resources to gang issues but it’s stubborn.”

The mayor’s office did not respond to CBS2’s request for an on camera interview.

So far, no arrests have been made. The investigation is ongoing.