A Stamford arson task force and state officials with "an accelerant-sniffing dog" were investigating, Lt. Diedrich Hohn told the Stamford Advocate.
Five fire engines, two ladder trucks and a rescue vehicle were dispatched to the two-alarm fire on Bedford Street, the Advocate reported.
The fire closed Bedford Street for nearly three hours at North Street after it broke out at 5:45 a.m., the story said.
Stamford's Chief Fire Marshal Charles Spaulding "warned against jumping to conclusions" about the cause of the blaze, according to the Stamford Advocate.
Click here to read the Stamford Advocate article.
Click here to follow Daily Voice Stamford and receive free news updates.