Officials say a lone firework is what likely sparked a fire at a New Britain company earlier in the week.
According to a spokesperson for Rich Products, the fire broke out sometime Thursday evening on the roof of their facility located on Myrtle Street.
The plant was immediately evacuated and no employees were injured.
The fire did not damage any equipment or systems inside the facility and employees were able to eventually go back inside to continue working.
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The spokesperson stated that the company is also in the process of filing a police report, but did not specify further.