Hotel / Motel, Hotel / Restaurant Sprinkler system puts out fire at DoubleTree hotel (Tucson, AZ) October 17, 2014 viking210 An afternoon fire began on the sixth floor of a hotel on October 16. The hotel was equipped with fire sprinklers, which activated in the room where the fire began and suppressed the flames. The cause of the fire is under investigation, and the Tucson Fire Department is unsure if anyone was in the hotel room when the fire broke out. No injuries were reported.