Authorities released additional information about Wednesday’s fatal bridge collapse in Simpson County. Three survivors are in serious condition at the University of Mississippi Medical Center (UMMC) in Jackson.

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

Simpson County emergency officials took quick action after the Strong River bridge on State Route 149 collapsed on Wednesday6. Emergency officials said several construction workers were trapped on a platform under the bridge,

SIMPSON COUNTY, Miss. (WDAM) - A bridge collapse in Simpson County has resulted in casualties, according to Sheriff Paul Mullins. Mullins has confirmed that three people have died as a result of a work site accident Wednesday on the bridge that collapsed over Strong River on State Route 149.

Three people have died and at least four were injured after a bridge collapsed on State Route 149 in Simpson County. Officials with the Mississippi Department of Transportation (MDOT) said the bridge over the Strong River collapsed Wednesday afternoon while work was being conducted at the site.

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

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.