Authorities in California are offering rewards totaling $80,000 for information leading to the arrest of one or more suspects who opened fire on a child's birthday party last weekend, killing four and wounding 13.

The reward money is offered by multiple community organizations and law enforcement agencies. Authorities have not publicly identified any suspects in the Nov. 29 shooting in Stockton, about 50 miles outside of Sacramento, and the investigation remains ongoing.

The FBI announced it is offering a reward of up to $50,000 for information that leads to the suspects' capture. Authorities are asking anyone with photos or videos of the incident to submit them to tips.fbi.gov, along with a description of the file's location and the time it was recorded.

Stockton Crime Stoppers is offering another $25,000, a number that rose after Mayor Christina Fugazi contributed $10,000 and District 2 Councilmember Mariela Ponce pledged $5,000. Anonymous tips can be submitted by calling (209) 946-0600 or visiting stocktoncrimestoppers.org.

The Young Peace and Justice Foundation, a national nonprofit dedicated to ending the epidemic of violence and advocating for the welfare of youth and community safety across the United States, is offering a reward of up to $5,000 for information leading directly to the arrest of the suspects.

The shooting at a 2-year-old’s birthday party at Monkey Space banquet hall left four people dead and 13 others injured. Those who were killed were identified by family members as 8-year-old Journey Rose Reotutar Guerrero, 8-year-old Maya Lupian, 14-year-old Amari Peterson and 21-year-old Susano Archuleta.

San Joaquin County Sheriff Patrick Withrow described the incident as a targeted attack and said that, so far in the investigation, it appeared multiple suspects were involved. He emphasized that detectives were continuing to investigate and questions would be answered as they combed through the evidence and interviewed witnesses.

"We need everyone to continue to reach out to us, even if you think it's something that contradicts what you see online," Withrow said. "There's so much misinformation out there. Please, if you saw something, if you videotaped something, even if you think it's minor, reach out to us."

What happened in the Stockton shooting?

Authorities responded to reports of shots fired at a banquet hall shortly before 6 p.m. on Nov. 29. As many as 150 people were there for the child's party, officials have said. Withrow previously said that the shooting appeared to begin indoors before moving outdoors. Bullet holes riddled one entrance to the building.

"We're going to say that we're confident that this was not a random act," Withrow said at a news conference over the weekend. "They walked into this area and was probably looking for somebody in particular. Why they did that, what they're part of, who they are ‒ we don't know."

The ages of the injured range from 8 to 30s, the Stockton Record, part of the USA TODAY Network, reported. Authorities haven't released all their information, but the Record reported that community activist Jasmine Dellafosse was among the injured.

"I watched these poor babies in their last moments, and I have no words but love to the families," she said in a social media post.

Record reporter Hannah Workman covers news in Stockton and San Joaquin County. She can be reached at hworkman@recordnet.com or on Twitter @byhannahworkman.

Contributing: Karissa Waddick, James Ward, Victoria Franco, Elizabeth Roberts and Thao Nguyen, USA TODAY Network

This article originally appeared on The Record: FBI, groups offer $80K in rewards after Stockton mass shooting

Reporting by Hannah Workman and Jeanine Santucci, USA TODAY NETWORK / The Record

USA TODAY Network via Reuters Connect