abc action news reporter marisela burr los is live -- burgos is live with why it took so long to move the patients out. >> reporter: there are 290 beds inside of this hospital. last night. this morning, there are zero patients. the reason for the evacuation is because of an electrical fire in the generator room that knocked out the power to the hospital. once that happened, rescue crews from various areas helped move patients. they had to carry patients down steps to ambulances. it took several hours to do that. the power has been restored to the hospital, but the backup power is the problem now. until they fix that, officials say patients will not be treated here. to recap, the hospital lost power around 6:15 night. the wiring of the backup generator was damaged. >> when the power went off, the generator automatically comes on. there is an electrical switch that realizes the regular utility power is not on and is supposed to click over. the generator kept trying to push it over, and it didn't do it. . i don't know if the swch was stuck or what happened but it caused it to short out.