AUSTIN, Texas (AP) – Fire officials say two workers fell to their deaths after scaffolding collapsed at a construction project in Austin, Texas.

Battalion Chief Harry Evans said another man was hospitalized but the extent of his injuries was not known.

The collapse happened Wednesday afternoon at a residential building near the University of Texas. Evans said the cause was not known.

The two workers who died fell between 11 and 13 floors. The third worker fell onto a roof structure that was about seven floors below the scaffolding.

A fourth worker was injured but not taken to the hospital.

AP-ES-06-10-09 1740EDT