Video footage shot on the container ship that flattened a section of the Francis Scott Key Bridge in Baltimore shows the extent of damage.

The National Transport Safety Board (NTSB) video is one of the first glimpses inside the Maersk-chartered 9,962-teu Dali (built 2015).

There are close-ups of debris on the bow, as US Coast Guard and NTSB officers take photos and temperature measurements.