A pedestrian bridge still under construction on a college campus collapsed onto a multi-lane road in Florida Thursday, crushing cars under 950-tons of concrete. Police say at least six people are dead, and 10 others are hospitalized, two in critical condition.
U.S. Senator Marco Rubio of Florida Tweeted late last night that the cables that suspend the Miami bridge had loosened and the engineering firm ordered that they be tightened. They were being tightened when it collapsed.
A surveillance camera video that captures the moment of the collapse.