Twenty people have reportedly been shot on the 1300 block of South Waterman Avenue in San Bernardino, California, the LA Times reports.
An active shooter was confirmed, by police, to have remained in the vicinity.
Possible suspects include three caucasian men in military gear.
Update Dec. 3rd 8:59 am EST:
Update 5:04 pm EST:
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News outlets have confirmed the shooting via Twitter.
Witnesses have tweeted updates.
We'll keep you updated as this story develops.
*Editor's note: Certain tweets have been removed in light of new information.