Officials gave an all clear after a strong odor of gas prompted a hazardous materials response in Chicago's Lincoln Park neighborhood on Monday afternoon.
Firefighters said they checked several locations following reports of gas. One location, in the 1800 block of North Marcey Street, was evacuated shortly after 1 p.m. A logistics company, C.H. Robinson Worldwide, is at the address.
Gas officials and the fire department reported no unusual reading from gas equipment and could not find the source of the smell.
Employees of the logistics company were allowed to return to the building at about 1:45 p.m.