STOCKTON, Calif. (AP) — Authorities in California urged witnesses of a deadly shooting at a child's birthday party to come forward as the search for a suspect stretched into another day.

Three children ages 8, 9 and 14 and a 21-year-old were killed Saturday when gunfire broke out at a banquet hall in Stockton where at least 100 people were gathered, San Joaquin County Sheriff Patrick Withrow said. Detectives believe the gunfire continued outside and there may have been multiple shooters.

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