The fire, which began around 2:15 p.m., also caused a propane tank to catch fire.
Multiple fire departments are on the scene, including several bringing tankers of water to help douse the flames. Firefighters are reporting a brush fire has begun beside the building's dumpster.
Police could not provide more details regarding injuries or the cause of the fire at this time.
This is a developing story. Check back to Daily Voice for updates.
For real-time Dutchess news in your Facebook feed, be sure to "Like" Daily Voice's Dutchess County Community Forum Page on Facebook by clicking here.
Click here to follow Daily Voice Northwest Dutchess and receive free news updates.