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Multiple people were killed when a newly built bridge at Florida International University collapsed upon a major Miami highway, Florida Highway Patrol Lt. Alejandro Camacho confirmed Thursday.

Fox News affiliate WSVN 7 Miami reported that the modular bridge - called the Sweetwater University City Bridge - was the world's first bridge to be constructed entirely out of self-cleaning concrete.

Emergency officials were also looking beneath the wreckage for additional pedestrians who were potentially trapped. Camacho confirmed that at least five vehicles were trapped.

Fox News confirmed through Miami's ABC affiliate, WPLG, that the bridge collapsed while undergoing a stress test.

Authorities said eight people were transported to Kendall Regional Medical Center to be treated for their injuries. WSVN also reported that the portion of the bridge that collapsed weighed 950 tons.

The bridge had not yet officially opened to the public.

WSVN reported that the bridge was intended to provide pedestrian access from FIU's main campus to the city of Sweetwater.

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