A single loose wire on the Dali, a 300-metre (984ft) container ship, was responsible for the deadly collapse of the Francis Scott Key Bridge in Baltimore last year, according to a months-long investigation by the United States National Transportation Safety Board (NTSB).

Due to problems with the wiring, the Dali experienced two blackouts on March 26, 2024, before losing control of propulsion and steering, leading the container ship to crash into the bridge and kill six highway workers, the NTSB said in a statement on Tuesday.

The bridge collapse created a global media sensation last year when a livestream video of the accident went viral. It was captured by a camera set up to monitor traffic through the Port of Baltimore but instead filmed the swift collapse of a major section of the bri

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