Three people were killed Monday in a crash at a construction site near a business district in Charlotte, North Carolina, authorities said.

Charlotte Fire Captain Jackie Gilmore told reporters at the scene that scaffolding collapsed at the construction site shortly after 9 a.m. Two other construction workers were taken to a hospital for evaluation.

All work at the construction site was halted until investigators from the Occupational Safety and Health Administration could assess.

Construction workers fell about 70 feet, WCNC, NBC affiliate informed.

Queen City News of Charlotte reported that the construction site where the accident occurred is being developed as a luxury community for seniorsbut the Houston-based developer behind the project, Bridgewood Property Co., said the accident occurred at a neighboring address.