Workers were evacuated from City Hall in Atlantic City Friday afternoon because of fumes.
A repairman working on the second floor may have accidentally spilled a solvent, fire officials told The Press of Atlantic City.
Rescue crews treated eight people on the scene who had minor symptoms including nausea.
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Two people were taken to the hospital for further evaluation.
City workers were sent home early while a Hazmat team checked out the building. Friday evening, everything was back to normal.