Sgt. Luis Mejia, head of the Tracy Police Department detectives unit, said the girl was taken to a local hospital and released, though he would not say where she was shot or how many times.
Police went to the house on Redbridge Road after receiving a 911 call at 2:55 a.m. for shots fired.
Mejia said police did not know what kind of party it was, and he would not release information about the events that led up to the shooting, how the shooting occurred or whether the person thought to be the shooter had been invited to the party.
He did not say whether the shooting was gang-related.
“We’re trying to piece together the series of events,” he said. “At this time, it is an open investigation.”
Anyone with information about the shooting is asked to call Tracy police Detective Alex Kalinin at 831-6636.
• Contact Denise Ellen Rizzo at 830-4225 or firstname.lastname@example.org.