San Francisco, July 19 One person was killed and three others were injured during a shooting in Walnut Creek, Northern California, police said.
Local police responded after receiving reports of a shooting at 1.37 a.m. on Sunday, Xinhua news agency quoted the police as saying in a Facebook post.
One victim died at the scene and the other three were taken to a local hospital, police said, adding that "This is an active investigation".
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