A massive fire broke out at the Quaker Otis factory in Cedar Rapids, the US state of Iowa, Saturday, after an explosion inside the building, prompting fire crews to intervene, according to the New York Post. Authorities confirmed the safe evacuation of all workers with no injuries, while fire crews were able to control most of the fire, and according to the company's official position, the plant is still the largest facility in the world.

A massive fire broke out at the Quaker Otis factory in Cedar Rapids, the US state of Iowa, Saturday, after an explosion inside the building, prompting fire crews to intervene, according to the New York Post. Authorities confirmed the safe evacuation of all workers with no injuries, while fire crews were able to control most of the fire, and according to the company's official position, the plant is still the largest facility in the world.