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MIAMI, FL - MARCH 15:  Miami-Dade Fire Rescue Department personel and other rescue units work at the scene where a pedestrian bridge collapsed a few days after it was built over southwest 8th street allowing people to bypass the busy street to reach Florida International University on March 15, 2018 in Miami, Florida. Reports indicate that there are an unknown number of fatalities as a result of the collapse, which crushed at least five cars.  (Photo by Joe Raedle/Getty Images)
MIAMI, FL - MARCH 15:  Miami-Dade Fire Rescue Department personel and other rescue units work at the scene where a pedestrian bridge collapsed a few days after it was built over southwest 8th street allowing people to bypass the busy street to reach Florida International University on March 15, 2018 in Miami, Florida. Reports indicate that there are an unknown number of fatalities as a result of the collapse, which crushed at least five cars.  (Photo by Joe Raedle/Getty Images)

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    Evening news briefing from CNN

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Evening news briefing from CNN

Evening news briefing from CNN on Thursday, March 15.

Evening news briefing from CNN

Evening news briefing from CNN on Thursday, March 15.