Fire crews were called to The Links of Manhattan apartment complex at 517 Gatlinburg Way around 3:45 a.m. on a report of a structure fire.
When they arrived, they said they could not see any flames or smoke coming from the three-story apartment building outside.
Crews investigated and found a sprinkler system in the kitchen of a first-floor apartment had put out the fire.
Firefighters then searched the apartment and rescued a dog and cat. No one was home at the time of the fire.
The apartment building has 24 units. Investigators estimate a total loss of $20,000 to the building, but only the unit that caught fire was affected.
Manhattan Fire said the cause remains under investigation.