The blaze broke out Sunday, March 28, in the early evening on Glenbrook Road in Stamford, said Stamford Fire Captain Philip Hayes.
On arrival, firefighters found fire on the fourth floor of the complex coming from a single apartment, Hayes said.
A second alarm was immediately sounded, bringing an additional engine and truck company to the scene.
Hose lines were stretched up the interior stairs to the fourth floor, where a quick fire attack extinguished the apartment fire in just a few minutes, Hayes said.
Victim searches of the fire apartment and adjacent apartments confirmed that there were no civilian casualties.
The fire was confined to the one apartment, but there was extensive water damage to several apartments on the third and fourth floors caused by a sprinkler that had activated just as crews were entering the apartment, Hayes said.
The current occupant of the apartment could not be found on the scene, he added.
The Stamford Fire Marshal Office is actively investigating the cause of the fire.
One firefighter was transported and later released from Stamford Hospital for an incident-related condition.
Stamford EMS, Stamford Police, and the Stamford Fire Mechanical Division all assisted with scene operations.
Click here to follow Daily Voice Stamford and receive free news updates.