no injuries were reported in a fire at an apartment building in downtown santa cruz on tuesday evening. firefighters responded at about 6 p.m. to the 6th floor of the pacific avenue building. the fire affected an unoccupied apartment, and is believed to have been electrical. water from the sprinkler system damaged an apartment below and displaced 4 people. fire officials would like to remind everyone that building occupants should always evacuate if a fire alarm is heard.