The shooting at Cascade Mall in Burlington left one man injured Friday night, said Sgt. Mark Francis, a spokesman for the state patrol.
Authorities believe only one shooter is involved and are searching for a man who headed toward Interstate 5 after the attack.
Witnesses described chaotic scenes and confusion when the shooting started about 7 p.m. local time
Brandi Montreuil told CNN she was watching a movie at the mall when attendants suddenly told them to leave.
“I didn’t know anything,” she said. “The theater attendant came in and apologized for stopping the movie and said they (theater staff) were asked to have everyone leave immediately.”