Updated at 7 p.m. ET Saturday
At least nine people were killed after a fire broke out at a party in a warehouse space in Oakland, Calif., according to the city's fire chief.
There are at least another 25 people unaccounted for, Oakland Fire Chief Teresa Deloach Reed said Saturday, according to The Associated Press. Spokesperson Sgt. Ray Kelly of the Alameda County Sheriff's Department Coroner's Bureau said the coroner is preparing for a "mass casualty event" with perhaps as many as 40 fatalities.