Victims ranged from children to adults, a San Joaquin County Sheriff's spokesperson said. No information about the gunman has been developed, she said.

On Sunday morning, San Joaquin County investigators were particularly focused on the area near the Dairy Queen and along Lucile Avenue.

The shooting in Stockton, a city in California’s Central Valley, left 11 others wounded. The authorities said they were looking for a suspect.

Three children were among the four people killed, the San Joaquin County Sheriff's Office said. The victims were 8, 9, 14, and 21 years old.

Three children and one adult were killed Saturday at a banquet hall in Stockton during a child's birthday party on Nov. 29.

Four people were killed and 10 others wounded in a shooting at a banquet hall in Stockton, California on Saturday evening, local authorities said.

The 19-year-old victim of the Newark shooting earlier this month that left three dead and two others injured was the protector of his family, his cousin said. Masi Rogers died last Thursday from injuries he sustained during the Nov. 15 shooting at the corner of Chancellor Avenue and Leslie Street, officials said.

State police are investigating an early morning shooting on I-95 that left one person wounded, and partially shut down traffic for hours. The shooting occurred around 7 a.m. Sunday, in the northbound lanes, approaching the Cottman Avenue exit, said a Pennsylvania State Police spokesperson.