Firefighters responded to a fire at the M & R Frosted Food Company in West Haven on Saturday morning.
The fire broke out in the building at 168 Peabody Street sometime around 7:30 a.m.
Crews from the Department of Energy and Environmental Protection also responded to the scene to investigate whether any chemicals were involved.
After investigating, they determined there were no issues with chemicals.
M&R has been in business in West Haven for 50 years, according to the owner. The company delivers food for school lunch programs in Connecticut.
Company workers were last in the building at 3:30 p.m. on Friday, according to fire officials.
Investigators said they don't believe the fire was intentionally set, but they are still looking for the cause.
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No one was injured.
