A fire broke out at a building on Main Street in Danbury early Monday, prompting a second alarm response and a two-hour firefight.
Fire crews were called to 385 Main St. and quickly raised the fire to a second alarm as additional resources were brought to the scene.
Officials said the department's new drone team was also deployed to help assess conditions and monitor the fire.
Crews extinguished the blaze in about two hours. No injuries were reported.
The cause of the fire remains under investigation.