OMAHA, Neb. (AP) — Omaha’s tallest building — the First National Tower downtown — has been ordered evacuated after cleaning solution fumes spread throughout the building, sending four people to the hospital.
The evacuation was ordered Thursday morning, cutting off traffic on the streets surrounding the 633-foot (192.94-meter) tall tower where about 2,000 people work.
The newspaper said that of the four taken to hospitals, one was in critical condition and the other three in serious condition.
First National Bank spokesman Kevin Langin says workers were using a de-scaling solution on the building’s air system humidifier starting around 10 a.m., creating the fumes. Officials initially called for the first 17 floors to be evacuated, but expanded that to all floors before 11 a.m.