UPDATE [11:12 p.m.] - Multiple outlets, including MyFoxPhoenix andAZCentral.com, are now reporting via the Prescott Fire Department that 18 firefighters have died while fighting the Yarnell Hill fire in Arizona. The previous story can be found below.
 YARNELL, Ariz. (AP) -- A fire information officer says 19 firefighters are unaccounted for while battling the Yarnell Hill Fire in a central Arizona community.
Mike Reichling told the Arizona Republic (http://bit.ly/158NjWp) that 20 firefighters were involved in a "serious incident."
The newspaper reports that one of the firefighters has been located.
The Yavapai County Sheriff's Office has notified residents in the Peeples Valley area and in the town of Yarnell to evacuate.
Roxie Glover, spokeswoman at Wickenburg Community Hospital, told The Associated Press that the hospital has been told to expect residents with injuries and firefighters. READ MORE...