Investigators are working to determine what started a fire at a landmark restaurant on Main Street in Essex on Monday morning.
Firefighters were called to the fire at 15 Main Street around 4:15 a.m.
When they arrived, they said there was a working fire, but it was mostly contained to the back of the building where the kitchen for the Black Seal restaurant is. The building contains the restaurant and four apartments.
Residents of the apartments were able to exit the building safely and two or three apartments are damaged, authorities said. At least four people are displaced because their power is out. Once crews separate the power and turn it back on, they'll be able to get back in, according to fire officials.
Officials do not know when the restaurant could reopen.
Crews from Clinton, Deep River, Essex, Old Lyme, Old Saybrook and Westbrook were called in to assist.
The Essex Fire Marshal's Office is investigating. There is no cause at this time.
No injuries were reported.