A sheriff says three construction company employees remain hospitalized in critical condition a day after a bridge collapsed while they were preparing it for demolition in a rural area of central Mississippi.

A bridge located over the Strong River in Simpson County, Mississippi, collapsed. Three people were killed and four were injured, authorities say.

Three people have died and four have been seriously injured after a Mississippi bridge collapsed while it was being prepped for demolition

A construction company said Thursday that it is cooperating with local authorities' investigation of how a bridge in rural Mississippi collapsed while some of its employees were preparing the structure for demolition.

Three people were killed and four others were injured when a bridge, which was being prepared for demolition, collapsed in a “work site accident” in Mississippi on Wednesday afternoon, according to authorities.

Three workers were killed and four injured when a road bridge over the Strong River collapsed as the workers were preparing it for demolition Wednesday afternoon in Simpson County, Miss.

The bridge over the Strong River in Simpson County, Mississippi had been closed to traffic since September 18.

The bridge was closed to traffic when it collapsed while a work crew was prepping it for demolition, authorities said.