MIAMI (AP) — New videos show construction workers laboring on a pedestrian bridge in Florida shortly before it collapses, killing six people.

The time-lapse video released Wednesday by Florida International University shows the four construction workers using a crane hoist to perform work on the bridge.

A preliminary report from the National Transportation Safety Board suggests investigators are focused on cracks in the south and north ends of the bridge near a Miami-area university campus.

The cracks were discovered in the days before the March 15 collapse, which killed a bridge worker and five people in vehicles crushed by the falling structure.

The bridge was to have spanned a busy highway and canal and connected Florida International University’s campus to the neighboring community of Sweetwater.

Copyright 2024 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Join our Newsletter for the latest news right to your inbox