The fire began at a three-story home at 30 Lexington Ave. just after 2:30 p.m. The fire began on the first floor, and many people on the second and upper floors did not realize the building was in flames.
Firefighters alerted them and helped evacuate the building while battling the fire.
Thankfully, there were no injuries. The Red Cross is assisting the 22 people displaced with temporary accommodations.
The Norwalk Fire Marshal is investigating the cause of the fire.
Click here to follow Daily Voice Norwalk and receive free news updates.